Amanda borrows £1200. She has to pay 21% per year simple interest. How much interest will Amanda have to pay in 3 years?

Asurvey of 45 teens found that they spent an average of 25.6 hours per week in front of a screen (television, computer, tablet, phone, based on the survey’s sample mean, which value could be the population mean? 2.3 hours 27.4 hours 75.3 hours 41.5 hours

Find the area of the triangle formed by the origin and the points of intersection of parabolas y=−3x^2+20 and y=x^2−16.

The tile along the edge of a triangular community pool needs to be replaced? ?