12. The ratio of soy sauce to lime juice in a homemade salad dressing is 7:6. The ratio of soy sauce to lime juice in a store-bought dressing is
11:9. Which dressing has the greater ratio of soy sauce to lime juice?
Homemade Salad Dressing
Store-Bought Salad Dressing
Soy
Sauce
7
Soy
Juice
11
Lime
Juice
6
Lime
Sauce
9

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).

it would have to be 3/0