diff --git a/worksheet.rb b/worksheet.rb
index ece4662..faffcbe 100644
--- a/worksheet.rb
+++ b/worksheet.rb
@@ -2,18 +2,112 @@
 # Step 1: Establish the layers
 
   # Write a list of the layers here
-
+#layer one - overall grouping
+#layer two - Driver ID
+#layer three - Date, Cost, Rider-ID, and Rating
 ########################################################
 # Step 2: Assign a data structure to each layer
 
   # Copy your list from above, and write what data structure each layer should have
-
+  #layer one - overall grouping - array
+  #layer two - Driver ID - hash
+  #layer three - Date, Cost, Rider-ID, and Rating - part of hash
 ########################################################
 # Step 3: Make the data structure!
 
     # Setup the data strcture and manually write in data presented in rides.csv
 
-########################################################
-# Step 4: Total Divers Earnings and Number of Rides
 
-  # Use an iteration block to print driver's total rides and money made
+
+  rideshare = {
+        DR0001: [
+          {
+            rider_id: :RD0003,
+            date: '3rd Feb 2016',
+            cost: 10,
+            rating: 3
+          },
+          {
+            rider_id: :RD0003,
+            date: '5th Feb 2016',
+            cost: 45,
+            rating: 2
+          },
+          {
+            rider_id: :RD0015,
+            date: '3rd Feb 2016',
+            cost: 30,
+            rating: 4
+          }
+        ],
+        DR0002: [
+          {
+            rider_id: :RD0013,
+            date: '4th Feb 2016',
+            cost: 15,
+            rating: 1
+          },
+          {
+            rider_id: :RD0066,
+            date: '5th Feb 2016',
+            cost: 35,
+            rating: 3
+          },
+          {
+            rider_id: :RD0073,
+            date: '3rd Feb 2016',
+            cost: 25,
+            rating: 5
+          }
+        ],
+        DR0003: [
+          {
+            rider_id: :RD0003,
+            date: '5th Feb 2016',
+            cost: 50,
+            rating: 2
+          },
+          {
+            rider_id: :RD0066,
+            date: '4th Feb 2016',
+            cost: 5,
+            rating: 5
+          }
+        ],
+        DR0004: [
+          {
+            rider_id: :RD0022,
+            date: '3rd Feb 2016',
+            cost: 5,
+            rating: 5
+          },
+          {
+            rider_id: :RD0022,
+            date: '4th Feb 2016',
+            cost: 10,
+            rating: 4
+          },
+          {
+            rider_id: :RD0073,
+            date: '5th Feb 2016',
+            cost: 20,
+            rating: 5
+          }
+        ],
+      }
+
+
+      ########################################################
+      # Step 4: Total Divers Earnings and Number of Rides
+
+        # Use an iteration block to print driver's total rides and money made
+      
+      #pull arrays for drivers
+      rideshare.each do |driver, rides|
+        total_earnings = 0
+        #look at eacg ride
+        rides.each do |single_ride|
+          total_earnings += single_ride[:cost]
+        end
+        puts "Driver #{driver} made $#{total_earnings} and took #{rides.length} rides."
+      end