Esteban has a big jar of change in his room. he has 600 coins total, and 240
of them are pennies.
what percentage of the coins are pennies?

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2

Satchi found a used bookstore that sells pre-owned dvds and cds. dvds cost $9 each, and cds cost $7 each. satchi can spend no more than $45.

Find the solution of each of the following.