Convert 45 degrees Celsius into Fahrenheit

What is the number 63 a prime or a composite

150 miles in 3 hours

Dexter plans to spend totally 8 hours on preparing for his final. He will spend 3.5 hours on math. He needs twice as much time on biology as on English. He plans to take three 30-minute breaks in-between his study.

A jet travels 470 miles in 2 hours. At this rate, how far could the jet fly in 12 hours?

A city planner wants to estimate the proportion of city residents who commute to work by subway each day. A random sample of 30 city residents was selected, and 28 of those selected indicated that they rode the subway to work.

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.