First right answer for both gets brain

17 in long 1.3 ft wide and 8in high what is the volume

Julie goes to the sports store and spends $40.50 before tax. she buys a pair of shorts for $21.75 and 3 pairs of socks that each cost the same amount. how much does each pair of socks cost? $$

If f(x) = -5x + 1 and g(x) = x3, what is (gºf)(0)? enter the correct answer