Question

String A is 18 inches long.

Answer 1

String B: 33 inches
String C: 9 inches

Answer 2

String A is 18 inches long but 15 shorter than B. this means to get be you need to add string A(18) to 15. that would be 33 inches. string C is half the length of A(18) so you divide 18 by 2(half) to get string C. that would 9 inches