A collection of dimes and quarters has a total value of $3.95. If there are 20 coins in the collection, how many are there of each kind?

Which of these samples is a valid random sample for the population given? Alia questions three students from her class to learn about the movie preferences of students in her school.

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It takes 40 min for a bus to travel the 36 miles from Framingham to Worcester. A car traveling from Worcester to Framingham moves 1.5 times as fast as the bus.

Suppose that 3<a<4 and 4<b<5. Find all possible values of: a-b

What is the GCF of 44j5x4 and 121j2k6?

Which number expresses 6.72 as a fraction in simplest form?

Kyle needed about 1 liter of water to fill a container. did kyle most likely fill a small glass a spoon or vase?

Tape travels through a tape player at a speed of 9.45 feet per minute. how many feet of tape are needed for half an hour of continuous music?

You invested into a content management company that specializes in peer to peer networks four years ago with a stock value of $56.30 a share. Today, a single share of the company is worth $32.21.

The original price of a new pair of shoes is $40. If there is a 20% discount on all shoes, how much is deducted from the original price?