Step-by-step explanation:

Answer:
2.5
Step-by-step explanation: i just solved it and it was correct. 300-250=50 50 divided by 20 is 2.5. you divide it by 20 because you have to isolate h in 20h by itself. and to do that you divide 20h by 20
Answer:
3240 degrees.
Step-by-step explanation:
Here (as you said), this 20-gon is convex. In the image below, that is #1. One interior angle is 162 degrees. Simply multiply that by 20 to get 3240 degrees as the sum.
She will drive a total of 800 miles
8 times 2 because 8 miles each way would mean 16 miles in one day
five days a week so 16 times 5 = 80
for 10 weeks so 80 times 100 would mean a total of 800 miles