How do i determine the slope of the line using a graph

The conversion factor relating feet to meters is 1 ft=0.305 m. keep in mind that when using conversion factors, you want to make sure that like units cancel leaving you with the units you need. you have been told that a certain house is 164 m2 in area. how much is this in square feet?

What is the area of mnp? 40 m2 60 m2 68 m2 127.5 m2

In a graph with several intervals o data how does a constant interval appear? what type of scenario produces a constant interval?