M+8 would be your final answer
Answer:
4/10 or 40%
Step-by-step explanation:
4 black marbles out of 10 which equals to 4/10
Exponent rule added:
12xx^2 -9x^2
rewrite 9 as 3 x 3, rewrite 12 as 3 x 4
3 * 4xx^2 - 3 * 3x^2 ( * is multiply)
factor common terms:
3x^2(4x-3) - answer.
First simplify then solve.

We find there are two solutions. In your case the correct answers are A, C, D
Hope this helps.
r3t40
Hope this helps.
r3t40