If a x b = 2a - 3b + ab, then 3 x 5 + 5 x 3 is equal to?
A. 20
B. 22
C. 24
D. 26
a * b = 2a - 3b + ab
3 * 5 = 2(3) - 3(5) + (3)(5)
= 6 - 15 + 15
= 6
5 * 3 = 2(5) - 3(3) + (5)(3)
= 10 - 9 + 15
= 1 + 15
= 16
3 * 5 + 5 * 3 = 6 + 16 = 22
The answer is B.