Silvia's test scores are 86,81 and 92 what must she score on her fourth test in order to have an average of 90 for all four tests

Acompany is testing in comparing to lightbulb designs the box plot shows the number of hours that each lightbulb design last before burning out which statement is best supported by the information of the plot

In angle pqr find the measure of

How to find the exponential function y=ca^x, with points (1,2) and (2,1)