What's the area of a semicircle with 2 radius

What is a way to solve $30.50-$17.79

How you use counting outside of school

The candy jar has 251 pieces of candy. Sophia adds 31 pieces of candy to it. If the candy is divided equally between 6 campers, how many pieces will each camper get?

1/8 of grid is blue and 5/8 of the grid is red what fraction of the grid is not colored in?

A sample of 100 janitors in a certain school district found that the average time each janitor had worked for the school district was 8 years. Suppose we know that the standard deviation of the population is s=5 years.

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.