Hawkins High School had a bake sale. They sold cookies and brownies. The cookies
sold for $2 a cookie. The brownies sold for $3.50 a brownie. They made $400 in
sales. How many cookies and brownies did they sell, if they sold 155 total combined?
Write a system of equations for this scenario. Use substitution to solve the system
of equations.
Hint: You can use X for cookies and Y for brownies. Or C for cookies and B for
brownies.
