Evaluate: a - ab a=2 and b=-3
try to show work

How do businesses a country's economy? a. by investing in goods and services b. by increasing the unemployment rate c. by making profits

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

Find the value of x to the nearest tenth.