Write an algebraic expression to represent the number of pens that can be bought with 30 cents if each pen costs c cents

Abag of popcorn contains 483 calories and servers 3.5 people. how many calories are in each serving.

Read the equations in the table below. then drag a description of the situation and a table to represent each equation. indicate whether each of the relationships is proportional or non-proportional.

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?