Yes, I know these problems!
Answer:
10+37h
Step-by-step explanation:
10 is the flat fee so only happens once
37 is hourly rate so multiply by h (hours)
Answer:

Step-by-step explanation:
ну где-то тааакккккккккк
You add 70,50, and 90 together then you do seperately 30, and80 (add) lastly take that amount then divide that by your first sum
Solve for x by simplifying both sides of the equation, the isolating the variable. x=-8