Find two consecutive even integers whose sum is -50. which of the following equations could be used to solve the problem?
1. 2 x = -50
2. 2 x + 1 = -50
3. 2 x + 2 = -50
4. x^2 + 1= -50

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.