Order from least to greatest

2/5, 2/10, 8/10 and 3/5

2/10, 2/5, 3/5, 8/10

Step-by-step explanation:

It would be getting all the common denominator, so you would make 2/5 and 3/5 into the denominator 10. So 2/5=4/10 and 3/5=6/10. Then you can order them from least to greatest easier. Starting from 2/10-8/10

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).