What property is shown k * (7-9) = (k*7) - (k*9)

It took a plane 3 hours to travel 2100 miles with a tail wind. It took the plane 7 hours to make the return trip against the wind. How fast was the plane traveling? And how strong was the wind blowing?

Factor x^2+64 using complex numbers

What type of numbers represent parts of a whole? fractions integers decimals

Three baskets contain three consecutive odd numbers of apples. There are 105 apples in total. How many apples are in each basket?

Add (2x^4-x^2+5) - (x^4-x^3+2x^2)

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.