A student's cost for last semester at her community college was $3000. she spent $510 of that on books. what percent of last semester's college costs was spent on books?

Blank × 10-3 is 2,000 times greater than 1.9 × 10-6. it is also blank times greater than 9.5 × 10-4.

Sasha drank 8 bottles of water everyday for a week. how many bottles of water did she drink in total?

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.