How many meters is 40 centimeters equal to?

What is the approximate circumference of the circle shown below?

Kapil needed to buy a long wooden beam. he went to two sawmills that each charge an initial fee plus an additional fee for each meter of wood. the following equation gives the price (in dollars) of a wooden beam from the first sawmill as a function of its length (in meters). p = 5+20xp=5+20x

Factor the polynomial by its greatest common monomial factor.