In how many years, will an amount double itself, if the simple interest is calculated at the rate of 10% p. a.?

You decide instead to take the train there. the train will take 135 minutes. convert this into hours and minutes.

Reinel saves 30% of every pay check. his paycheck last week was 560$. how much did reniel save last week?

Student representatives surveyed their classmates on their preference of a school mascot for a new school. the results are shown in the table below. which pair of samples seems most representative of student preference?