What does x equal in the equation 40:x=6

Simplify the expression 5c+3-2c-4

Leah had 0.25 of a pizza left over. Her friend Nguyen, ate 1/6 of the left over pizza. How much of the pizza did Nguyen eat?

If a soccer team won 7 of its 13 games, what was their ratio of wins to losses? Assume that there were no tie games. 7 to 6 7 to 20 7 to 13 1 to 2

4a + 7b + 3a - 2b + 2a

A taut telephone wire extends from the top of a 24-foot tall telephone pole to a stake in the ground 10 feet away. A bug crawled from the stake in the ground up the wire to the top of the telephone pole.

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.