Factor, in mathematics, a number or algebraic expression that divides another number or expression evenly—i.e., with no remainder. For example, 3 and 6 are factors of 12 because 12 ÷ 3 = 4 exactly and 12 ÷ 6 = 2 exactly. The other factors of 12 are 1, 2, 4, and 12.
Dimensions of the logo: W = 4 in, L = 6 in Dimensions of the billboard: W ( Billboard ) = 4 x 15/2 = 2 x 15 = 30 in L ( Billboard ) = 6 x 15/2 = 3 x 15 = 45 in Answer: D ) 30 in by 45 in