5x100+5x90+5x8 and there you go all you need to do is do this problem the right way and you will get the right answer
To find how long it would take, you must divide the total amount of gallons of water in the pond by the amount of gallons drained per hour. This would translate to:
4290 ÷ 78
Which would give you the total amount of hours needed to completely drain the pool, aka the answer:
4290 ÷ 78 = 55
-54 i believe
Explanation: used calculator
What is his average amount of money that he earns per day so then we can solve this problem.