Standard Alignments:
CCSS Math:
7.RP.2
7.RP.2 Recognize and represent proportional relationships between quantities.
7.RP.2.C7.RP.2.C Represent proportional relationships by equations. For example, if total cost t is proportional to the number n of items purchased at a constant price p, the relationship between the total cost and the number of items can be expressed as t = pn.