Which of the following expressions is equivalent to - 1/2 (2 - 2x) + 3 ?
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25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.

The graph of h(x)= |x-10| +6 is shown. on which interval is this graph increasing

The fence around a quadrilateral-shaped pasture is 3a^2+15a+9 long. three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. what is the length of the fourth side of the fence?