7) Which equation is true and uses the GCF of 12 and 30?
A) 12 + 30 = 2(6 + 15)
B) 12 + 30 = 3(4 + 10)
C) 12 + 30 = 6(2 + 5)
D) 12 + 30 = 6(2 + 7)