X + x + x + x - 20 is equivalent to 4x - 20 because you can add the like terms, or the x's.
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Answer:</h2><h2>c = -24</h2><h2 /><h2>Hope this helps!!</h2>
If an ostrich can run 50 miles in one hour then he can run 12.5 miles in 15 minutes. 15 minutes is 1/4 of an hour. Multiply 50 by 0.25 = 15.
You have to check f(1) in each one to see if it's right and for f(4)
