What is the slope of the line through -2, one and two, -5 in the center of X, Y coordinate plane

Which expression is equivalent to 2x^2+2x-4/2x^2-4x+2

Write the equation in logarithmic form m^x=n

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