PLEASE HELP !! Let * (cos(2x))/(cos(x) + sin(x)) = 0 where 0 degrees <= x <= 180 degrees What are the possible values for x?

Solve the system of equations y= 3/2 - 1, -x+ y =-3

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.

What is the image of c for a 90° counterclockwise rotation about a? (3, 7) (-1, 3) (7, 3)