The below equations represent a purchase Roblox for Robux. (Robux = r) One-time purchase = $9.99 = 800r
Subscribed (you purchase every month) = $9.99 = 1000r
One-time purchase = $19.99 = 1700r
Subscribed (you purchase every month) = $19.99 = 2200r
What is the coefficient for the equation for students who subscribe at a rate of $9.99 per month?

Find the domain of the following expression: 1/(√x)-2

Sarah took the advertising department from her company on a round trip to meet with a potential client. including sarah a total of 11 people took the trip. she was able to purchase coach tickets for $280 and first class tickets for $1280. she used her total budget for airfare for the trip, which was $6080. how many first class tickets did she buy? how many coach tickets did she buy?

Suppose you just purchased a digital music player and have put 8 tracks on it. after listening to them you decide that you like 4 of the songs. with the random feature on your player, each of the 8 songs is played once in random order. find the probability that among the first two songs played (a) you like both of them. would this be unusual? (b) you like neither of them. (c) you like exactly one of them. (d) redo () if a song can be replayed before all 8 songs are played.