Scott was going to sell all of his stamp collection to buy a video game. After selling half of them he changed his mind. He bought 15 more. How many did he start with if he now has 40?

At noon, the temperature in Deliberate, Texas was 29°F. By midnight, the temperature had fallen to -11°F. What was the change in temperature over the 12-hour period?

Which of the following is true about the 1920s? Only two correct answers A. Women began to work outside the home B. Automobiles became more expensive C. The Ku Klux Klan lost supporters D.

What multiplies to - 240 and adds up to - 8?

Mary and James each sit in a row of 7 chairs. They choose their seats at random. What is the probability that they don't sit next to each other?

The scale on a map is 1 in. : 15 mi. The distance between two cities is 25 mi. Find the distance in inches between the cities on the map.

3x+5-x=2x+7 is infinite real soluction, no real soluction or one real soluction

Select the correct answer. Which of these statements explains the term price? A. the money spent by a seller to advertise a product B. the money spent by a manufacturer to make a product C. the money spent by a buyer to purchase a product

A polling organization took a random sample of 3,000 middle school students to determine how many have a dog. Suppose that 57% of all middle school students have a dog.

When Sally went bowling, her scores were 108, 72, and 95. If she bowls a 4th game, what will her score need to be to give her an average of 91?

Tanya kicks a ball into the air. The function that models this scenario is f (t) = - 16t2 + 96t, where h is the height of the ball in feet and t is the time seconds. When will the ball hit the ground?