To find how much will Zach be paid if he sells 410 bags of peanuts, we just need to evaluate 410 on the function given that determinates the paid amount.
If Zach sells 410 bags of peanuts, he will earn $604.90 for the week.
For the second part, since we have the value he earned, we substitute this value by the function and solve for n to find how many bags of peanuts did Zach sell if he earned $827.40.
If Zach has earned $827.40, he sold 660 bags of peanuts.