At the book exchange, all paperbacks sell for one price and all hardbacks sell for another price...

Question

I don't know how to set up this equation, I'm sure I could solve it I just need some direction :( I know that I have to probably make 2 equations to figure out the information for Todd but I don't know. 

 

At the book exchange, all paperbacks sell for one price and all hardbacks sell for another price. Anne got 6 paperbacks and 3 hardbacks for $8.25, while Cora got 4 paperbacks and 5 hardbacks for $9.95. What will Todd pay for 7 paperbacks and 9 hardbacks? 

Answer 1

Let p = the price of a paperback.

Let h = the price of a hardback.

 

Then 6p + 3h = 8.25 is one equation, for what Anne paid.

 

That should get you started.  Following that template, you could set up Cora's equation.  Once you have that, you can solve for p and h.  Then you'll be able to find what Todd will pay.