Ms. Pepper is buying school supplies for her classroom. She bought 4-pack highlighters for $2.50 each and 12-pack coloring pencils for $2.00 each. She bought twice as many coloring pencils as she did highlighters, and the total amount of money she spent before taxes was $52. Let x represent the number of packages of 4-pack highlighters purchased, and write an algebraic expression for each item in parts a through c.
A) The cost in dollars of the highlighters. Write an algebraic expression using the variable x.
B) The number of packages of 12-pack coloring pencils purchased. Write an algebraic expression using the variable x.
C) The cost in dollars of the coloring pencils. Write an algebraic expression using the variable x.
D) The sum of the expressions in parts a and c is $52. Write and solve an equation to determine the number of packages of 4-pack highlighters purchased.