In 1984 there were 125 students for each computer in U. S. public schools. By 1998 there are 6.1 students for each computer. What is the percent decrease in the ratio of students to computers?

What is [tex] {7}^{98 + \sqrt{4} } - 3 \times (64 \div 2 + 4 - 36) \times a = a + 36[/tex]?

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.

(x-5)1/2+5=2 what is a possible solution?