40,841 in expanded notation

If one line is skew to another, then they are (always, sometimes, never) coplanar. Which one?

The difference between a number divided by 3 and 4 is 21

Jenny goes to dance class every 6 days, karate class every 12 days, and to the library every 18 days. On December 157 she went to both classes and the library. On what date will she do both classes and go to the library?

Laura is completing a craft project that involves covering only the lateral surface of a cylindrical container with fabric. The cylinder has a height of 16.8 in. and a radius of 14.6 in.

What represents the number written as 23 and 37 thousandths

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.