How to find the volume of a square pyramid?

1. determine whether the ratios are proportional 2/4 and 20/36 yes or no 2. determine whether the ratios are proportional 3/18 and 2/9 yes or no 3. which of the follow is NOT equivalent to the ratio: 6/10 3/5 72/120 18/30 36/40 4.

A cube-shaped container has twice the volume of a container shaped like a rectangular prism that has dimensions of 3 feet by 4 feet by 9 feet. What is the length of the cube's edge?

Classify ∆ABC by its angles if m A = x, m B = 2x, and m C = 3x

Mr. brownwood invests a certain amount of money at 9% interest and $1,800 more than that amount in another account at 11% interest. at the end of one year, he earned a total of $818 in interest. how much money was invested in each account?

ABCD is a parallelogram. If / increases, then / A. remains the same B. doubles C. increases D. decreases

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.