help me for 100 points

Find slope:-
[tex]\\ \tt\hookrightarrow m=\dfrac{779.87-299.95}{13-5}[/tex]
[tex]\\ \tt\hookrightarrow m=\dfrac{479.92}{8}[/tex]
[tex]\\ \tt\hookrightarrow m=59.99[/tex]
Answer:
Step-by-step explanation:
Proportional relationship:
You can use any ordered pair to find the unit rate k.
Let's use (5, 299.5):