Answer:
x=9, x=-9
Step-by-step explanation:
subtract 3 from both sides
x^2=81
then squareroot both sides (remember that there is a positive and negative solution!)
x=9, x=-9
Answer:
• point C
Step-by-step explanation:
______________
Answer:
<h2>25</h2>
Step-by-step explanation:

Part A
Choice 2- The difference between 2 and -1 is -3.
Part B
Martha's total score is -2