Let the number of hours be x
Assume x > 1
Total cost = 30 + 20(x -1) = 30 + 20x - 20 = 10 + 20x
Answer:
1 is good number 2 is wrong number 3 is good
Step-by-step explanation:
your welcome im juss writting more so it wont say issa short question!!
Answer:
-5
Step-by-step explanation:

Answer:
i think it is a
Step-by-step explanation:
21 because that's the only people that you have information on.