HELP ON FINAL RN GOTTA PASS

Somone me i want to know what 18 hours out of 24 hours in a fraction

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

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25