Lulu tells her little brother, Jack, that she is holding 20 coins all of which are dimes and quarters. They have a value of $4.10. She says she will give him the coins if he can tell her how many of each she is holding.

4x4+yxy+4+y=32. what is y?

A meteorologist predicts a 20% chance of rain for the next two nights and a 75% chance of rain on the third night. Jim would like to go camping for three nights. What is the probability, as a percent, that it will rain on all three nights?

Factorise 12x^3-4x^2

Kandace drives 48 miles each way to work. She works 5 days a week. Her car gets 32 miles per gallon of gas. If gas costs $3.79 per gallon, how much does she spend for gas to drive to work each week?

2.9n+1.7=3.5+2.3n what is n

Jack is taking a road trip. If he travels 180 miles at 40 miles per gallon and then another 105 miles at 35 miles per gallon, how many gallons of fuel has his car consumed?

Ryan uses 2 3/4 cups of oil to make 6 servings of French fries. What fraction of a cup of oil did he use for one serving of French fries?

Your cell phone plan cost $44.99 per month. you also pay 20% in taxes and fees what is your bill after taxes and fee?

Truncate 534.68 in the tens place

A bank vault is 14 feet long, 10 feet wide, and 9 feet tall. The bank's new decorator decides that square-looking vault is not very pretty, and she decides to knock out the wall adjoining the bathroom and make the 3-foot by 6-foot by 8-foot space of