Answer:
proof is where you have something to explain/show what you saw to people when they don't believe you.
Answer:
D
Step-by-step explanation:
Plug in every scenario, in see if it equal to each other.
D is the only one that is equal.
4a + 3 = 15
- 3
4a = 12
÷ 4
a = 3
I hope this helps!
Total points scored=72(2)+9
=153
Mean=153/7
=21 6/7
=21.9 (3s.f.)
