What value of x is in the solution set of 9(2x + 1) < 9x – 18?

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The measure of one angle of an octagon is two times smaller that of the other seven angles. what is the measure of each angle?

Suppose that the price p, in dollars, and the number of sales, x, of a certain item follow the equation 4 p plus 4 x plus 2 pxequals56. suppose also that p and x are both functions of time, measured in days. find the rate at which x is changing when xequals2, pequals6, and startfraction dp over dt endfraction equals1.5.

What is the slope of the line (-7,2) (4,6)