Some wise shoppers have the habit of rounding all items to the nearest dollar as they place them in their shopping basket. They can then keep a running total and have a close approximation as to how much their final bill will cost. Use this technique to estimate the cost of the following.

a) Jeanette purchases 10 items: $3.25, $0.85, $4.65, $8.99, $12.30, $7.10, $2.90, $1.95, $4.85, $3.99

b) Adam purchases 12 items: $0.55, $3.00, $5.40, $8.90, $6.90, $2.19, $3.20, $5.10, $3.15, $0.30, $4.95, $1.11 c Jeanette’s actual shopping total is $50.83 and Adam’s is $44.75.

c)How accurate were Jeanette’s and Adam’s estimations?