It cost $8.31 to power one laptop computer for one year. how much does it cost to power 10 for one week.

Adepartment store purchases screen-printed t-shirts at a cost of $5 per shirt. they mark up the price 150% (making the selling price 250% of the store's purchase price) and put them on the sales floor. every month that a t-shirt doesn't sell, the store reduces the selling price by 25%.

Arecipe calls for 2 2/4 cups of raisins, but julie only has a 1/4 measuring cup. how many 1/4 cups is needed to measure out 2 2/4 cups of raisins?

F(x) = 1/x g(x)=x-4 can you evaluate (g*f)(0) ? why or why not?