Answer:
Step-by-step explanation:
5x² - 10x - 7 + 5x² + 8 = 5x² + 5x² -10x - 7 + 8
= 10x² - 10x + 1
Bring like terms together and add/ subtract the like terms
Answer:A
to round up you would tip $5
because it’s a little over 50 and a little under 10
Answer: 3x + 2 <u>></u> 53
