This task is a two-step problem. This is remixable. 

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Ms. Jones’s class is trying to earn $130 to provide food for the rescue animals at the local shelter.  They already earned $90 at a penny drive.  The class has two ways they could raise the rest of the money.  They could sweep the lunch room for $10 per week or pick up trash in the school yard for $8 per school day.  Which job should the class do to earn the money the fastest? 

Write equations to represent the story, using symbols for the unknown numbers. Solve for the unknown using pictures, words, or numbers. Show your work.