Which is better 9.95 for 30oz of coffee or 3.50 for 12oz of coffee

Match each equation with the operation you can use to solve for the variable. subtract 10. divide by 10. divide by 5. subtract 18. multiply by 10. add 18. add 10. multiply by 5. 5 = 10p arrowright p + 10 = 18 arrowright p + 18 = 5 arrowright 5p = 10 arrowright

Which equation matches the graph shown ?

Whats the name of the vertical axis