Question

A = 5, b = 3, c = 4 11) ab-ac

Answer 1

A x b - a x c
Substitute the numbers into the equation, since they’re still ab and ac you’ll have to bracket them
= (5 x 3) - (5 x 4)
= (15) - (20)
= 15 - 20
= -5

Hope that’s it