Maggie's brother is 4 years younger than four times her age. The sum of their ages is 31. How old is Maggie?
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Me! #1 write an equation for the interior angles of this triangle that uses the triangle sum theorem. #2 what is the value of x? #3 what is the measure of #4 classify the triangle above as acute, obtuse, or right. state your reason in a complete sentence.

Using the side-splitter theorem, daniel wrote a proportion for the segment formed by luke segment de. what is ec?

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?