Use grouping symbols to make each equation true
1. 9 + 3 - 2 + 4 = 6
2. 4^2 - 5 x 2 + 1 = 1

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.