Answer:
a. $102 b. $38 c. 19/70.
Step-by-step explanation:
a. You spent 2/3 * 60 + 7/10 * 35 + 5/6 * 45
= $102.
b. Cost before the sale discount = 60 + 35 + 45 = $140 , so the amount you saved = 140 - 102 = $38.
c. Fraction on original price saved = 38/140 = 19/70.