Points p and q are plotted on a line, drag point r so that a 180 degree rotation with center r sends p to q and q to p

Which of the following answers is 7/9 simplified? 7/9 2/9 11/9 2/7

The population of a small rural town in the year 2006 was 2,459. the population can be modeled by the function below, where f(x residents and t is the number of years elapsed since 2006. f(t) = 2,459(0.92)

Use the method of cylindrical shells to find the volume v generated by rotating the region bounded by the curves about the given axis.y = 7ex, y = 7e^-x, x = 1; about the y-axis