4.9 (8.3c+1.5) + 1.9c

how to simplify combining like terms

Determine which relation is a function. A. { (1,2), (2,3), (3,4), (4,5) } B. { (2,2), (3,2), (4,2), (1,2) } C. { (5,7), (5,8), (5,1), (5,3) } D. { (1,2), (5,8), (1,4), (3,8) }

a store has 800 T-shirts if 40 of the t-shirts are a size small what percent of the t-shirts are small

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The information for two pay as you go cell phone companies is given. On cell 3.5 hours: 10 dollars. Talk time half an hour: 1 dollar and 25 cents. What is the unit rate in dollars per hour for each company?

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What's the difference between linear and non linear functions