Since 2004, the amount of money spent at restaurants in a certain country has increased at a rate of 5% each year. In 2004, about $410 billion was spent at restaurants. If the trend continues, about how much will be spent at restaurants in 2018?
About $
nothing billion will be spent at restaurants in 2018 if the trend continues.

the solution is 12x-6y

9x

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).

150

step-by-step explanation:

(sorry i'm not typing it again just read the other two explanation sections i just typed it'll be the same.)