How do you write the scientific notation of 230

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.