How do you simplify 55/20

Write 45 as a product of the FCC and another number

Sophie can type 128 words in 3 minutes. how many will it take her to type 576 word?

17w + - w - 12w - - 2w + - 20w = 14

36 is 72% of what number

The following is a geometric sequence. Find the next number in this sequence. 1, - 2, 4

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.