A library expansion begun in 2002 was expected to cost 113 million by 2006 library officials estimate the cost would be 38 million over budget. by what percent did the actual cost exceed the initial estimate

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.