Find the sum of first n even numbers.

What is the difference between the equations of a vertical and a horizontal line?

5x−4≥12 or 12x+5≤−4 can you with this problem

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.