If x + y = 13 and xy = 40, then x and y = *

What is the inverse of the function f(x)=4x+8

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?

Part a: sam rented a boat at $225 for 2 days. if he rents the same boat for 5 days, he has to pay a total rent of $480. write an equation in the standard form to represent the total rent (y) that sam has to pay for renting the boat for x days. (4 points)