Solve |x|+7< 4

{x | x < -11 or x > -3}
{x | -3 < x < 3}
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Susie wants to take her friend out for lunch.she wants to spend $9.75 each person. how much will she spend in all.

For the feasibility region shown below find the maximum value of the function p=3x+2y

The mass of a marine organism, in pounds, p years after it is born is given by the polynomial function r(p) = -4p2 + 300p. find the mass when p = 20 years.