Answer:
4^12
Step-by-step explanation:
4^9 * 4^3
We know that a^b * a^c = a^ (b+c)
4^(9+3)
4 ^ 12
4 ^ 9 x 4 ^ 3
You add the exponents when the bases are the same.
9 + 3 = 12
A
I am almost completely positive that question 4 is A
19.5cm2
Reflection.correct me if im wrong
1.25
hope it helped and sorry if it's wrong i wish you luck
