In order to become a member of
the library-all-star-members club,
there is a $40 sign-up fee and a $2
monthly fee. Write an equation in
slope-intercept form that models this
situation.

Y=2x+40

4. Use equation you wrote in problem
3 to find the total cost of being an
all-star library member for 19 months.

Gravel is being dumped from a conveyor belt at a rate of 25 ft3/min, and its coarseness is such that it forms a pile in the shape of a cone whose base diameter and height are always equal. how fast is the height of the pile increasing when the pile is 14 ft high? (round your answer to two decimal places.) ft/min