Which function is decreasing?
a. price of a house as a function of size
b. numer of soft drinks sold at a ballpark as a function of outdoor temperature
c. the time it takes the ice to melt as a function of temperature.
d. world population since 1900 as a function of time.
f. number of children enrolled in a particular school as a function of time

Carley bought a jacket that was discounted 10% off the original price. the expression below represents the discounted price in dollars, based on x, the original price of the jacket.

Three students, javier, sam, and corrine, participated in a fundraiser where people donated a certain amount of money per lap that the student ran. each student also had some initial donations that were collected before the run. the equations that represent each student's total donation, y, based on the number of laps ran, x, is shown below. match each equation with the correct rate of change for that student.

The table shown below gives the approximate enrollment at the university of michigan every fifty years. how many more students were enrolled at the university of michigan in 1950 than in 1900?