20 minutes past due! have to get to at least 80 something!!

Answer:
[tex]\frac{3}{4}[/tex]
Step-by-step explanation:
Take any 2 points on the line. Use the slope formula ([tex]m=\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex])
For this example, I will use:
20, 30 and 60, 60.
[tex]m=\frac{30-60 }{20-60 }= \frac{3}{4}[/tex]