The difference of 9 and the quotient of s and - 4

Sarah has 33 songs on her MP3 player if she wanted to put songs equally into seven different playlist how many songs would you have left

What is the product of (s+3t) (2s-2t)

What is 2/5 divided by (-4)

Researchers in Antarctica discovered a warm sea current under a glacier that is causing the glacier to melt. The ice shelf of the glacier had a thickness of approximately 450 m when it was first discovered.

An apple orchard's workers pick 12,500 apples in the month of October. A sample of 300 of these apples shows that 15 of them are damaged and bruised.

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.