Answer:
21 blueberry pies and 17 apple pies
Explanation:
Apple pie - 11
Blueberry pie - 13
total pie- 38
Total money - 460
let x = apple pie, y = blue berry pie
x+y=38
x=38-y
11x + 13y =460
11(38-y) + 13y = 460
418-11y +13y = 460
2y=42
y=42/2 =21
x=17