A publishing company cost for publishing a certain book was 4.85.the selling price of the book is 11.97. Find the percent of profit based on the cost

An advertising firm has an old computer that can prepare a whole mailing in 6 hours. with the of newer model the job is complete in 2 hours. how long would it take the newer model to do the job alone?

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.

Yesterday, george drank 1 small bottle and 2 large bottles, for a total of 1,372 grams. the day before , he drank 1 small bottle and 1 large bottle, for the total of 858 grams. how many grams does each bottle hold?