An animal shelter lines up 11 cages in a row. 3 of the cages contain cats and 8 of the cages contain dogs. How many ways can the cages be arranged in a row so that all the cat cages are together and all of the dog cages are together

b

step-by-step explanation:

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).