Atrain travels 150 miles in 3 hours. at this same rate, how many miles will it travel in 8 hours? a.400 miles b.450 miles c.500 miles d.350 miles

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.