Multiple Choice In Mr. Mamer's math class, there are three times as many girls as boys. The girls' mean grade on a recent quiz was 90, and the boys' mean grade was 86. What was the mean grade for the entire class?

F. 88

G. 44

H. 89

J. 95

Find a tenth of three quarters of $800

A construction crew has just finished building a road. The crew worked for 9 days. If they built 4 1/6 kilometers of road each day, what is the total length of road they built?

When you multiply 126 and 5 tens I'm step 3, why does its product have a zero in the ones place? Explain

17. If the area of a square is 64 square centimeters, what's the length of one side? O A. 4 cm OB. 8 cm O C. 32 cm O D. 16 cm

Factor to find the zeros of the function defined by the quadratic expression. 5x2 + 25x + 30

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.