126 ft of fabric.
Explanation:
14x9 or 10x9+4x9
J - $160.08
Surface area = two triangles + two rectangles + rectangle
SA * $1.45 = $160.08
81.

multiply everything with 2

x is the number of 1.50 and 2.50 wrenches he bought. do the calculations for the rest of them
83.

multiply with 4

x is the amount of half dollars in the pile of coins. do the calculations for the quarters.
86.

x is the amount of peaches cans, do the calculations for the rest.
0,5 1,3 is the answer hope this helps