I WILL MARK BRAINLEST AND GIVE 20 POINTS PLEASE HELP!! :(

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

Jonathan can throw a baseball 10 1/3 yards. his brother joey can throw a baseball 13 1/2 yards. how much father can joey throw the ball?

Find the rate of change for the situation.you run 7 miles in one hour and 21 miles in three hours.