Plz answer quick (porportions) and how to solve it

Compare the cost of the bike trips from the two companies shown. for both the cost in a linear function of the number of days which statements is true

Will give brainliestbased on the topographic map of mt. st. helens, what is the contour interval if the volcano height is 2,950 m?

Either enter an exact answer in terms of \piπ or use 3.143.14 for \piπ and enter your answer as a decimal.