If 5 kids like reading and 6 kids like science and 7 kids like pe how would i write this as an equation

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.

Donald has x twenty-dollar bills and 11 ten-dollar bill. how much money does donald have? write your answer as an expression.

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.