A.

Suppose that y varies with x, and y = 15 when x = 6. Write an equation

B.

Find y when x = 7

whats y?

y is 15

y = 5/2x

y = 35/2

Step-by-step explanation:

direct variation

y = kx

Substitute the values for x and y

15 = k (6)

Divide each side by 6 yo find k

15/6 = k

5/2 = k

The equation is y = 5/2 x

Now we know x = 7

y = 5/2 (7)

y = 35/2