Answer:
1.A
2.)D
3.)D
4.)A
Explanation:
7(x+6) you multiply 7 * x and then 7*6 that gives you 7x+6
7(5+x) you multiply 7*5 then 7*x that gives you 35+7x
3(7x - 8) you multiply 3*7x then 3*-8 that gives you 21x-24
m(3n + 7) you multiply m*3n then m*7 that gives you 3mn+7m