Sandi buys 2 fewer packages of pencils than p packages of pens. Pencils costs $2.45 per package and pens costs $3 per package. What does the expression 3p + 2.45(p − 2) represent?
The expression 3p + 2.45(p − 2) represents the
A. total cost of pens and pencils
B. cost of pens
C. number of pens and pencils
D. cost of pencils