Answer:
option c is the correct.
Step-by-step explanation:

by using the laws of exponent
a^m×a^n=a^m+n
12x^4+2/3x²

4x^4-3
4x³
Answer:
24
Step-by-step explanation: 6 divided by 1/4 is 24
Answer:
Here's what I get
Step-by-step explanation:
In each sum, the denominator of the second term is one greater than that in the first term.
Answer:
1/10
Step-by-step explanation:
1/5 * 1/2 = 1/10
Answer:
Step-by-step explanation:
-7x-2y=-13
x-2y=11
(subtract the first inequality from the second)
-7x-x = -8x
-2y-(-2y) = 0
-13-11= -24
-8x=-24
x=3
(now place the x value into the second inequality)
3-2y=11
-2y=11-3
-2y=8
y=-4
x=3
y=-4