Find the factors for each of the following 40, 21

Find the altitude of an equilateral triangle if each side of the triangle has a length of 20 m.

What is 7 kilometers in miles

In a certain year, the average e-mail user sent or received 143 e-mails each day. The number of e-mails received was 3 more than thrice the number sent. How many were sent and how many were received each day?

You have a set of numeric tiles, from 1 to 6. You randomly choose one tile. How many possible outcomes are there?

The perpendicular bisector of side ab of ∆abc intersects the extension of side ac at d. find the measure of ∠abc if m∠cbd = 16° and m∠acb = 118°.

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.