Alarge cheese pizza costs $18.each topping you add on costs $ 1.50. how much would it cost to get a large cheese pizza with c toppings added?

Based on what i know about mean, this doesn't add up.

Sole with work in 10 years, the average number of hours of tv watched per week by teenagers dropped from 23.9 to 21.4. find the percent of change.

How much orange juice do you need to make 2 servings of lemony orange slush?