C) Which of these numbers is a square number?

A 4x10 to the power of 5
B 9x 10 to the power of 4
C 4x10 to the power of 3
D 9x 10 to the power of 3

1.4

2.3

step-by-step explanation:

the formula for the constant of variation is

y= kx

divide each side by x

y/x =kx/x

y/x =k

we know a and y

1.   y/x = k

4/1 =4

check the other values to make sure they are the same

8/2 = 4   12/3 =4   and 16/4 =4  

the constant of variation is 4

2.   y/x = k

3/1 =3

check the other values to make sure they are the same

6/2 = 3   9/3 =3   and 12/4 =3  

the constant of variation is 3

what level of math? also i don't need to be paid if i can you.

answer: 0.26

i used the calculator on google