Ok ill help, just calm down dude. It'll be ok.
1. The answer is C bc u distibute the -2 with the a and 6. Here's the work:
-2(a+6)
-2*a = -2a and -2*6 = -12
-2a -12
2. The answer is integers. They are the positive and negative numbers, its technically a fancy name for them.