(7+8) because it’s in parentheses PEMDAS
well half 40 is 20 and 1 third of 60 is 20 and 1 fourth of 80 is 20 and i 1 fifth of 100 is 20 so that is who they are related
to get the slope of any straight line, we simply need two points off of it.
so from what I can tell in the graph, check the picture below, the line goes above the 4 about 3/4 pretty much, or namely 0.75 above the 4, that'd make it 4.75, the graph also goes below the -3, about 1/4 below, namely 0.25 that'd make it -3.25, because two grid lines make up a whole number, so let's use those two points to get its slope.