Answer:
15 hours.
Step-by-step explanation:
20 can be divided into quarters, 3 quarters is 15/20 hours.
Answer:
-9 and +4 are the factors
Step-by-step explanation:
-9 times +4 is -36 and if you add +4 to -9, you get -5.
After this your function will look like this:

and then:

so the answer is:

It is A. Because .8 is the same has saying .80, it is .80>.79, and 80 is greater than 79
The exact circumference is 60ft