Actual price of postage today is 46 cents for the first ounc

Actual price of postage today, is 46 cents for the first ounce and 20 cents for each additonal ounce.

A. Construct a linear model which can be used to estimate cost of postage.

B. Use your model to estimate the postage of a package which weighs 250 grams.

C. If you are willing to spend no more than three dollars on postage for a package, what is the most a package weigh that you could send on budget?

Ist ounce --46 cents

subsequent --20 cent

Let x be the no. additional ounce of postage

A) So, Cost of postage : C(x) = 46 +20x

B) C(x) = 250gm = 8.81 ounce

So, C(x) = 46 +20*8.81 = 222.2 cents

C) C(x) <=300 cents

So, 300>= 46 +20x

20x =< 254

x <= 12.7 ounce