A snowboarder starts at the top of a mountain that is 2,500 feet above sea level. The
snowboarder then descends at a constant rate of 650 feet per minute. Which equation
represents this situation, where y represents the current altitude of the snowboarder, in
feet, and x represents the number of minutes that have passed?
a. y = 2,500x - 650
b. y = 650x + 2,500
C. y = -650x - 2,500
d. y = – 650x + 2,500

Plz need answer now will mark which situations represent linear functions? check all that apply. a)the temperature rises and falls over the course of a day. temperature is a function of time. b)a baseball is hit into the outfield. the height of the ball is a function of time. c)a car goes 55 mph on the highway. distance is a function of time. d)a child grew 2 inches this year and 1 inch last year. height is a function of time. e)a movie director makes 2 movies per year. the number of movies is a function of the years.

If the cost to mail a package is an initial $5 and $0.28 for every pound the total cost to mail a package was $11.27, how much did the package weigh?

The sat and act tests use very different grading scales. the sat math scores follow a normal distribution with mean 518 and standard deviation of 118. the act math scores follow a normal distribution with mean 20.7 and standard deviation of 5. suppose regan scores a 754 on the math portion of the sat. how much would her sister veronica need to score on the math portion of the act to meet or beat regan's score?