What is the result of adding 20 to -20?

An 18% discount on a watch saved a shopper $72. find the price of the watch before the discount

What’s the volume of the triangular prism?

At a soccer tournament 1212 teams are wearing red shirts, 66 teams are wearing blue shirts, 44 teams are wearing orange shirts, and 22 teams are wearing white shirts. for every 22 teams at the tournament, there is 1 team wearing shirts. choose 1