What is 9hours 24min and 13 seconds minus 6h 45min and 9s

What's another name for Mercury Venus Earth and Mars

In the sequence 5, 8, 11, 14, ... the value of the common difference, d, is:

Catherine says that you can use the fact 24:4=6 to find 240:4. Use the drop-down menus and enter a value to complete her explanation below.

What is the solution to the system of equations below? Negative 4 x + 6 y = negative 18 and y = negative 2 x + 21 (9, 3) (3, 9) (-9, - 9) (-9, 9)

Determine whether the improper integral converges or diverges, and find the value of each that converges. ∫^[infinity]_-[infinity] e^|x| dx

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.