HELP PLEASE

which is equivalent to (3 + i)(4+2i)

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 numbers are included in the set of integers? what numbers are not included?

At a book fair, joe bought 24 books at 3 for $5 and had $2 left. how much money did he have at first?