Question 9508
"Solve in terms of a" means that you'll have a variable that's not the "a" on the left side of the equations, and you'll have an expression on the right side that uses ONLY the variable a. Yes, the expression on the right side may contain constants.


{{{ V = s^3 }}} <----- Start here for volume of the cube.


{{{ V = (4a)^3 }}} <----- Substitute 4a for s because the side is 4a. Notice that both the 4 and the a are being cubed. So this simplifies to:


{{{ V = 64a^3 }}} <---- Now you've got the volume in terms of a.