Which is bigger 2/3 or 14/21?

Factor the expression 9x^2-1

Jack has 10 nickels and some quarters. if the value of the coins is $2.00. how many quarts does he have?

How could you estimate the product 253*93?

At sumer camp the ratio of boys to girls is 7:3 if there were 63 boys how many girls were there

Which one of the following steps could be used as a shortcut method to multiply 12 by 50? A.) multiply 12 by 5 then multiply that result by 100 B.) divide 12 by 2, then multiply that result by 50 C.

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.