Write the fractions as a sum of fractions three different ways

A rare isotope of a nuclear material is very unstable, decaying at a rate of 14% each second. Find how much isotope remains 13 seconds after 7 grams of the isotope is created. The mass of the remaining isotope is approximately _ g

A box of 120 crayons contains variations of three colors: blue, red, and purple. The ratio of blue crayons to red crayons is 11:2, and the ratio of the number of red crayons to purple crayons is 2:7.

Evaluate - 4a + 8z if a=8 and z=3.

The closing prices of a common stock have been 61.5, 62, 61.25, 60.875 and 61.5 for the past week. what is the range?

How many solutions does y=2x+2,4x-2y=4 have?

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Three times a number is greater than six.

Mike's Movie Rentals charges $3.00 for each rental plus $0.50 for each additional day. Reed's Rentals charges $1.50 for each rental plus $1.25 for each additional day. For what number of additional days will the bill at both stores be the same?

What does 7 minus the product of 2 and x in algebra?

How do I show an expression that shows how to cut a ribbon that's 1'1/4feet into equal sizes pieces