Solve algebraically: lara bought 2 pencils and a eraser for $1.50. if a pencil costs 30 cents more than an eraser, how much does a pencil cost ?

What percent of the circle below is shaded?

Which of the following contains a variable?

Aweekly newspaper charges $72 for each inch in length and one column width. what is the cost of an ad that runs 2 column inches long and 2 columns wide? its not 288