Solve the system of equations by graphing.
y = -x + 7
5x + 5y = 10

The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number?

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

38 points and brainliest plz answer question in word document