Math sighh > .< (4 options included)

The sum of two numbers is 12 and their difference is 18 what are the two numbers

Acircle has a radius of 5/6 units and is centered at (3.6, 7.8) write the equation of this circle

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.