Equivalent ratios

x y
6 9
? 12
10 15

what number is missing from the table of equivalent ratios?
a) 4
b) 6
c) 8
d) 9

William invested $5000 in an account that earns 3.8% interest, compounded annually. the formula for compound interest is a(t) = p(1 + i)t. how much did william have in the account after 6 years? (apex)

What is the radius of a circle with an area of 78.5 cubic inches? use 3.14 for pie

Select the conic section that represents the equation. 3x2 + 3y2 -2x + 4 = 0