(b) Evaluate (6.3 x 10^6)+ (9 x 10^2).​

Use the elimination method to find the solution to the system of equations. 2x - 3y = -9 -x + 3y = 6

In angle pqr find the measure of

Randy and trey take turns cleaning offices on the weekends. it takes randy at most 4 hours to clean the offices. it takes trey at most 6 hours to clean the offices. what is the greatest amount of time it would take them to clean the offices together? 2.4 hours 2.5 hours