Answer:
11.31 $
Explanation:
Given in question that 
total apple brought to make candy apples = 5 pounds 7 ounce
since 1 pound = 16 ounce
 so, 5 pounds = 5 x 16 = 80 ounces
therefore total apple brought = 80 + 7 =87 ounces 
again, 
cost of 1 ounce = 13 cents 
so, cost of 87 ounces = 13 x 87 = 1131 cents 
 now, 
we know that 1 cent = 0.01 dollar 
so, 1131 cents = 0.01 x 1131 = 11.31 $