What is 2 00(1) = 2 00(1)

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

Tom can paint the fence in 12 hours, but if he works together with a friend they can finish the job in 8 hours. how long would it take for his friend to paint this fence alone?

Graph the system of equations. {6x−4y=−244x−8y=−32 use the line tool to graph the lines.