(Solved): 4.2 Vodacom has a cell phone plan that has a basic charge of R165 a month. The plan includes 400 fre ...

4.2 Vodacom has a cell phone plan that has a basic charge of R165 a month. The plan includes 400 free minutes and charges 10 cents for each additional minute of usage. Write the monthly

as a function of the number

of minutes used and graph

as a function of

for

. Question 5 Suppose that South African airways, states in its airline policy that all baggage must be box- shaped with a sum of length, width, and height not exceeding 108 cm . What are the dimensions and volume of a square-based box with the greatest volume under these conditions? Explain your solution.