Answer:
The 3rd one should be right
Step-by-step explanation:
I hope that helps
Answer:
The answer is <u>80</u>
Step-by-step explanation:
78.74 is closer to 80 than it is to 70.
The answer is c. The problem can be solved graphically
Answer:

Step-by-step explanation:

All we can do here is combine like terms (add those that have the same the same exponent)

Good luck!