Quiz scores have a mean of 6.5 with a standard deviation 0.5. Using Chebyshev's Theorem, what is the minimum of percentage of quiz scores between 5.5 and 7.5?

Is 1.06 bigger than 1.2

Use multiplication to find three equivalent ratios to 5:11

A=h (a+b) / 2 solve for h

Solve the equation y=-5x+24 y=4x-21

Solve for the area of ΔABC to the nearest whole number. A) 13 cm2 B) 26 cm2 C) 53 cm2 D) 106 cm2

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.