Answer:
Austin paid 9 bucks more
Step-by-step explanation:
Zach : original cost is 60 bucks.....on sale for 35% off....means he paid (100% - 35%) = 65%.
65% of 60 = 0.65(60) = 39 <=== what Zach paid
Austin : original price 60 bucks...on sale for 20% off...so he paid 80%
80% of 60 = 0.8(60) = $ 48 <=== what Austin paid
Austin paid (48 - 39) = $ 9 more then Zach