"Fuji apples sold for $1.29 per pound while Golden Delicious apples were on sale for $0.89 per pound. Sandi bought 3 1/2 pounds
of each kind. How much more did she pay for the Fuji apples than the Golden Delicious apples?"<- that's the question but i want to know how you would get $3.12 as your answer (and i know the answer is $1.40)
