“Big Ben” is the nickname of a famous clock tower London. The tower is 316 ft tall. The tower has 4 sides, and each side has a clock. Each clock is 22 ft in diameter. What is the combined area of all 4 clocks?

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.