At a library book sale, there is one price for hardback books
and one price for paperback books.
Last week, 40 hardbacks and 60 paperbacks were sold, for a
total of $380.
This week, 60 hardbacks and 120 paperbacks were sold, for
a total of $660.
A. Write a system of equations that can be solved to find h,
the price in dollars of each hardback book, and p, the price in
dollars of each paperback book. (25 points)
B. Solve your system of equations for h and p. (25 points)
(Yes, you can use Desmos Calc)