What is the percentage increase from 2.2 to 8

A bag contains 60 marbles, some blue and some green. The ratio of blue marbles to green ones is 1 : 5. How many blue marbles are there?

Stuckbars is mixing a new blend of coffee to send out to its stores in 20 pound bags. To keep the ingredient cost at $168, how many pounds each of Kenyan French roast ($9 per lbs) and Sumatran ($8 per lbs) must be mixed in each bag?

Can you simplify 110/429

Omar has 2 3/4 cups of dough to make dumplings. He uses 3/16 cup of dough for each dumpling. how many whole dumplings can Omar make?

Vanessa earns a base salary of $400.00 every week with an additional 5%, commission on everything she sells. Vanessa sold 1650.00. What was Vanessa's total pay last week?

The coefficients of the expression 2x^3-5x^2+x are:

Tuna provides 30 calories per ounce. On a graph representing the relationship between the number of ounces of tuna a person consumes and the number of calories the tuna provides which quantity should be graphed on the x-axis

You can afford monthly deposits of $190 into an account that pays 2.7% compounded monthly. How long will it be until you have $5,700 to buy a boat? Type the number of months: (Round to the next-higher month if not exact.)

Evaluate - 2a^2 if a = - 5/2 -25 -12 1/2 25 12 1/2

Jeremy swims 5 3/5 kilometers in a 7 day period. He swims the same distance each day. What distance does he swim?