Mary drove 715miles in 13 hours. at the same rate, how long would it take her to drive 275 miles?

What is the scientific notation for 4.2389

What is 5.82 times 13?

If there are 42 biscuits between the ratio 1:6 (between two people), how many does each child get

What is 23.45 less than 56.004?

How can I solve the following system of equations: - 4x + y = 6, - 5x - y = 21. I know I can cancel out but I don't know where or where to go from there.

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.