Which equation can be used to determine what number, n, is 40% of 64?
A(40)(64) = n
B40 ÷ 64 = n
C0.40(64) = n
D64n = 0.40
A(40)(64) = n
B40 ÷ 64 = n
C0.40(64) = n
D64n = 0.40