which number should replace both the asterisks in ( * / 18 ) x ( * / 72 ) = 1 ?
"let ( y / 18 ) x ( y / 72 ) = 1 y ^ 2 = 18 x 72 = 18 x 18 x 4 y = ( 18 x 2 ) = 36 the answer is c ."
sqrt(multiply(72, 18))