Which of the following employees derives their income from a fee for the items sold? а. commission
b piece rate
C salaried
d. tip

(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

you can't solve x because it is 2 linear equation and you only have one equation