Andrea has averaged the ages of 12 people in her class, and the mean is 16 years old. She removes one person from the data set and the mean becomes 15 years old. Which age was removed from the data set?

a.) 15

b.) 16

c.) 27

d.) 28

Which of the following is not a solution for x < 8? x = 9 x = 7.95 x = 4.3 x = - 3

Write an equation that represents the problem, then solve the problem. Seven-fourths decreased by a number is 2. Find the number

For what value of y does the graph of 4x - 1/2y = - 12 cross the y-axis?

What are the square roots of 144/256? -72/128 and 72/128 -12/18 and 12/18 -9/16 and 9/16 -12/16 and 12/16

A trail mix recipe calls for 2/3 cup almonds and 5/8 cup raisins. blake tripled the almonds and doubled the raisins how many cups of each did he use

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.