How you write 81900364 in expanded form

Jenny makes quilts. she can make 7 quilts with 21 yards of material. how many yards of material would be required to make 12 quilts?

Name two pairs of adjacent angels and two pairs of vertical angels in figure

These expressions represent the number of middle school students who signed up for 4 different spring intramural sports.

A sphere sits inside a cube and touches each side. The cube is 10 feet on each side. What is the volume of the cube surrounding the sphere to the nearest tenth?

Sandy is ordering bread rolls for her party, she wants 3/5 of the rolls to be whole wheat. What other factions can represent part of the rolls that will be whole wheat? Shade the models to show your work.

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.