Multiplication story for 9 times 8

Kwan bought three rolls of regular wrapping paper with 6.7 square meters of paper each. He also bought a roll of fancy wrapping paper containing 4.18 square meters. How much paper did he have altogether?

3 , 2, - 6 7 , - 1, - 6 5 Put the numbers in ascending order. A) 3 , 2, - 6 7 , - 1, - 6 5 B) - 6 5 , - 1, - 6 7 , 3 , 2 C) 2, 3 , - 6 7 , - 1, - 6 5 D) - 6 7 , - 1, - 6 5 , 3 , 2

Can anyone explain to me the concept of adding and subtracting integers with the same sign?! ...

Which value for x makes the open sentence true? 7+6•x=4 to the 2 power+x to the 2 power A. 5 B. 4 C. 3 D. 2

Gianni added 1 3/4 cup of pecans and 1 1/3 cup of walnuts to a recipe. How many cups of nuts did Gianni add to the recipe? A. cups 2 4/7 B. cups 2 1/12 C. cups 3 1/12 D. cups 3 1/3

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.