What is the discount if a jacket costing $85.00 is on sale for 20% off?

What number should be added to both sides of the equation to complete this square? x^2-10x=7

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.

In the diagram, gef and hef are congruent. what is the value of x