Rosarios sneakers sell for $80 and 400 are sold each week. what is the total revenue ?

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

What number is 7 units left of -15?

During the election for class president, 40% of the students voted for kellen, and 60% of the students voted for robbie. 500 students voted in total. how many more students voted for robbie than for kellen? answer with work : )