Question

A-t shirt cost $4 a sweter cost 4 times as much as the t-s

Answer 1

T-shirt costs $4
Sweater costs $4(4)

Sweater costs 4 x 4

4 x 4 = 16

Sweater costs $16 

hope this helps

Answer 2

if the tshirt is 4 and the sweater is 4 times as much, multiply 4x4 which is 16. the answer is 16$