Question

PLEASE ANSWER THANK U SO MUCH

Answer 1

k = 5.25

Explanation:

Given y varies directly with x then the equation relating them is

y = kx ← k is the constant of proportionality

To find k use the condition y = 84 and x = 16 , then

84 = 16k ( divide both sides by 16 )

5.25 = k

Answer 2

answer is 21 : 4

hope it helps ......