Last year, the average cost of a computer was $730. This year, the cost has decreased by 10%. What is the average cost of a computer this year?

How far could you drive on 50 gallons of gas

If you double the input of a function and it results in half the output, and if you triple the input and it results in a third of the output, what can be guessed about the function? check all that apply.

Aweekly newspaper charges $72 for each inch in length and one column width. what is the cost of an ad that runs 2 column inches long and 2 columns wide? its not 288