Miles work for a boat shop and needs to make at least $200 to pay his bills this month He receives one-eighth of his total sales. How much does miles need to sell in order to make at least $200

I’ve been trying all day to figure this puzzle out. i need the work for it aswell. it is a factoring polynomials tarsia. the image is below.

What is 140 squared pleas me i am dumb

Kim took out a $55,000 loan for college she is borrowing money from 2 banks bank a charges an interest rate of 8% and b charges an interest rate of 11% after one year kim owes 5000 in interest how much money did she borrow from bank a.