Does anyone know the answer to this problem?

Olivia uses the work below to determine 55% of 720 which explains the error in olivia’s solution

It says factor each expression 49x-28?

Ke’ajah has a coupon for 1/3 off the regular price, t, of a tent. which expression represents the price of the tent using the coupon? select the two correct expressions. a. 1/3t b. 2/3t c. t - 1/3 d. t - 2/3 e. t - 1/3t f. t - 2/3t