Lena made $192 for 12 hours of work. At the same rate, how many hours would she have to work to make $272?

17 hrs

Step-by-step explanation:

272×12 / 192

i hope this answers your question

the answer is 17 hours total

Step-by-step explanation: divide 192 by 12 to get the unit rate and then divide 272 by 16 to get 17 hours. hope this helps :)

the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).