Answer: E. 2
Step-by-step explanation:
x²=9
x=±3 ⇔ since it is square (any value after square will always be positive), the value can be negative or positive.
There are 2 solutions: 3 and -3
Hope this helps!! :)
5n+8=43
43-8 = 35
35/5 = 7
n=7
1. D
2. B
3. A
Hope this help :)
