During lunch hour at a local restaurant, 90% of the customers order a meat entree and 10% order a vegetarian entree. Of the customers who order a meat entree, 80% order a drink. Of the customers who order a vegetarian entree, 40% order a drink. What is the percent of customers who order a drink with their entree?

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.