Which expression is equivalent to 12a + 8

i cant see the choices but i think this is khan academy

Step-by-step explanation:

A.

By using distributive property you can figure out all the answers.

A: 4*3a, 4*2= 12a + 8

B: 4*3a, 4*8= 12a + 32

C: 6*6a, 6*2= 36a + 12

D: 6*6a, 6*8= 36a + 48

a =-2/3

Step-by-step explanation:

I can't see the answer choices but I'm going to try helping you.

12a + 8 is like a two step equation make it equal to zero

12a + 8 = 0

Subtract 8 on each side

12a = -8

Now divide by 12 on each side

a = -2/3

Hope this helps!

c

step-by-step explanation:

b is 38 degrees.

a is 52 degrees.

this is because if b is 38 and a is 14 degrees more than b than 38+14=52 and 52+38=90 degrees. hope this .