10 is %20 of what number

Adam got 56 correct out of 84 on his test. What fraction did he get wrong. Give your answer in the simplest form.

Two spinners that have sections numbered 1 through 5 are spun at the same time. Then, the numbers are added together. What is the total number of possible sums?

1.25, 1 3 / 4, 1.25 with thing on top of 5. And 1 1/5 least to greatest

Felix says that 2,000 + 400 + 70 is another way to write 2,407. What is Felix's error

Write 75,000 in scientific notation. A. 75.000 x 104 B. 7.5 x 103 C. 7.5 x 104 D. 7.5 x 105

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.