Melissa keeps a jar for holding change. The jar holds 21 coins. All of the coins are quarters and nickels. The total amount in the jar is $3.85. How many quarters are in the jar?

the total surface area of a cylinder is 6512 square centimetre and circumference of its base is 88 cm. find the volume of cylinder?

Clarence loves shoes. In fact, he loves the new Air Mancinis™ so much that he wants to get them in multiple colors. He has already spent $95 on a display case from Ikea.

A jet flew from new york to london in 7 hours the average speed was 499.4 miles an hour how many miles was the trip

How might an organization like Pew Research obtain an accurate estimate of the number of cell-phone only households in the first place? What kind of sample would you need to get this estimate? How would you contact this sample?

The amount of bacteria, f (x), observed by a research scientist is represented by the function f (x) = 3x + 7, where x is the number of hours passed since initial observation.

A fish is 12 meters above the surface of the ocean. what is its elevation

What multiplies to 105 and adds to 16

N x 4.9 if n = 84 what is the answer?

A video game is on sale for 25 percent off the original price is $42. what is the discount? and what is the sale price?

1) One chicken is able to lay 1.5 kg of eggs in one month. How many kilos will 3 chicken be able to lay in 10 months?