Change 8.6 x 10^-4 to decimal notation

2 numbers sum 120 and product 400 (numbers can be positive or negative)

29 rounded to the nearest tenth

I studied 24.4 hours for 4 days how many hours did I study Do you know?

Which decimal is less than 0.12 and greater than 0.008? A. 0.31 B. 0.36 C. 0.26 D. 0.009

2 divided by 3.4 divided by 5

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.