Answer:
okay thank you for free points
Answer: 45
Step-by-step explanation:

Yes. there is a fixed cost and variable cost.
Answer:
m = 5
Step-by-step explanation:
−4m + 5 = -15
-4m = -15 - 5
-4m = -20
m = 5
To find the amount of time between two events, we can use subtraction, just like we do with regular subtraction problems. The subtraction will look something like this:
10:33
-
7:18
Like in a regular subtraction problem, we can subtract the digits that line up, like 10 and 7. Subtracting all of the corresponding digits, we get that it took Tony 3 hours and 15 minutes to finish baking the cookies.