Y'all I need help!!

what's 13-6÷8

How do you determine whether a relationship represented as as graph is linear or nonlinear

If, while training for a marathon, you ran 60 miles in 2/3 months, how many miles did you run each month? (assume you ran the same amount each month) write your answer as a whole number, proper fraction, or mixed number in simplest form. you ran __ miles each month.

Predict which statements are true about the intervals of the continuous function. check all that apply