10 teams enter a soccer tournament. In the first round teams paired in 5 pairs to play with each other.
Assume that now in each match one of the teams marked as "HOME" and the other "AWAY" and first 5 games need to run one after another. How many different pairings are possible to create?

(2,20) means that the 2 is 2 hours and 20 is 20$. so there both 20$ for 2 hours only the same price. like it says. so, the dunk tank and the bounce house are the same price (20$) for the same amount of time (2 hours).

hope i

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8

answer is because 4×10=40

and 98×4= is 392

40,392