Super-saver sammy is putting money aside to save up for a bicycle. he as already saved $55.if he earns $9 per hour at his job and is saving up for a bicycle that costs $199, how many hours would he need to work to be able to buy the bicycle?

you need a common difference between consecutive terms to be constant, like 1,2,3,4 or 2,4,6,8, or 1,3,6,9

(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