Which expressions are equivalent to 4b

What's the whole number of 2/2

How many liters of pure water should be mixed with 18 liters of a12% saline solution to make a saline solution that is 3% salt?

Average speed of Car 1 = 35 mph. Average speed of Car 2 = 55 mph. Time elapsed between start of Car 1 and start of Car 2 = 18 minutes. How long before Car 2 overtakes Car 1? A=0.43 B=0.33 C=0.53

Brittany bought a dress that cost $22.50. If the sales tax is 6.5%, how much tax did she pay?

The stem-and-leaf plot lists the scores earned by students on a math test. How many students earned a score of 90 or greater?

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.