Caroline wants to compare the expressions -15 - 9 and 9 - (-15) to determine which result is greater. How can she do this without finding the value of each difference? Explain your reasoning.

What is the value of x in the diagram below?

65% of students in your school participate in at least one after school activity. if there are 980 students in you school, how many do not participate in an after school activity?

Diane’s bank is offering 5% interest, compounded monthly. if diane invests $10,500 and wants $20,000 when she withdrawals, how long should she keep her money in for? round to the nearest tenth of a year.