A railroad track rises 30feet for every 400 feet of track. what is the measure of the angle of elevation of the track?

How does the molecules react when somebody does one thing with it?

Factories 3t+15 factories 3a2+9a factories a2b+ab2+ab factories x2-25 factories 16-25*2

Solve for x. x2+10 + 25=27

Jess made 3 different stacks of wooden blocks. The first stack was 8 blocks high, the second stack was 4 blocks higher than the first, and the final was 8 blocks higher than the second. in total, how many blocks did jess use for all 3 stacks

A storage container is shaped like a rectangular prism the volume of the container is 1360 cubic feet the area of the base of the container is 160 square feet what is the height of the container

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.