Aladder 13 feet long is leaning against a house. the base of the ladder is pulled away from the wall at a rate of 2 feet per second. how fast is the top of the ladder moving down the wall when its base is 5 feet from the wall?

Find an equation for the linear function which has slope -10 and x-intercept -7

Which of the following expressions is equal to 2x^2+8

Carl's candies has determined that a candy bar measuring 3 inches long has a z-score of +1 and a candy bar measuring 3.75 inches long has a z-score of +2. what is the standard deviation of the length of candy bars produced at carl's candies?