Joe is buying school supplies. He buys 2 pencils, 4 erasers, 10 pens, and a backpack for $20. Pencils and pens cost the same amo
unt. If p represents how much each pencil and pen costs, and e represents how much each eraser costs, the following expression shows how much Joe spent on school supplies: 2p + 4e + 10p + 20
a) Simplify Joe’s total spending expression.
Simplified Expression: _______________________
