Chetan has an average of 77on his first 3 math tests. he wants an average of 80. what equation can be used to find s, the score chetan would need on the 4th test to achieve this average?

What is the solution to the system of the equations? x = y - 3 x + 3y = 13

Arectangular exercise mat has a perimeter of 36 feet the length of the mat is twich the width writeand solve an equation to determine the length in feet. of the mat then find the area in square feet of the mart

Ricky takes out a $31,800 student loan to pay his expenses while he is in college. after graduation, he will begin making payments of $190.66 per month for the next 30 years to pay off the loan. how much more will ricky end up paying for the loan than the original value of $31,800? ricky will end up paying $ more than he borrowed to pay off the loan.