28 divided by 4 = 7
so do 7 * 5 which is 35 so they make 35 cookies in 5 seconds
Download the app photo math and there is the answer
X is the number
when x is decreased by 18, we say 18-x
the result is 14
18-x=14
minus 18 both sides
-x=-32
times both sides by -1
x=32
Easily, take the square root of the number in the right side to find the radius

is the answer