I'm stuck on bWhen bicycles are sold for $300 each, a cycle store can sell 70 in a season. For every $25 increase in the price, the number sold drops by 10.

a) Represent the sales revenue as a function of the price.

b)The total sales revenue is $17,500. How many bicycles were sold? What is the price of one bicycle?

c) What range of prices will give a sales revenue that exceeds $18,000?

R= revenue

n= number of bikes

p= price

For a

Price| Number of Bikes sold

300 | 70

325 | 60

350 | 50

So find the slope

Plug that into y=mx+b

So that means the function to find n(number of bicycles sold) is

Since Revenue is then part a is which simplifies to

So to solve part b?