Answer:
It would cost $1.16 of rhubarb and $2.08 of strawberries.
Step-by-step explanation:
rhubarb = 89cents/lb
strawberry = $1.50/2lb = 75cents/lb
One pie requires 5oz of rhubarb and 11oz of strawberries.
1Lb is 16oz, so:
5oz x 1lb/16oz = 0.3125lb x 89cents/lb = 0.29cents x 4 pies = $1.16
11oz x 1lb/16oz = 0.6875lb x 75cents/lb = 0.52cents x 4 pies = $2.08
To make 4 pies, it would cost $1.16 of rhubarb and $2.08 of strawberries.