Write 4120000 in scientific notation

Julia has something that's 0.5 pounds and it cost 16$ per 0.5 pounds If she had 0.75 pounds how much money would that be?

What is 20/60 simplified

Alana is having a party. She bought 3 rolls of streamers and 2 packages of balloons for $ 10.00. She realized she needed more supplies and went back to the store and bought 2 more rolls of streamers and 1 more package of balloons for $ 6.25.

What is a polynomial function in standard form with zeros 1,-1,2, and 4

440 students went on a field trip. all 8 buses was filled and 8 students had to travel in cars. how many students were in each bus

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.