Can someone ask me a hard math question?

1. Find the value of each of the following: a. 9?8 b. 9?1 c. 9?9

Write a number of your choice, using the following clues: a two digit number greater than 40 divisible by both 2 and 3

Karena makes berry sauce using a ratio of 2 cups blueberry sauce to 5 cups strawberry sauce. If Karena makes 21 cups of berry sauce in total, how many cups of strawberry sauce will she use?

How many times larger is 3.4 * 10-1 than 3.4 * 10-5?

A cone has a volume of 150cm cubbed. What is the volume of a cylinder that just holds the cone

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.