Anne can wash her car in 90 minutes and Joe can wash his car in 72 minutes. If they worked together how much time will they take to wash there car? pls show answer as well as working out!

Read the situations in the table below. then drag a graph and equation to represent each situation. indicate whether each of the relationships is proportional or non-proportional. edit : i got the right answer its attached

Petes dog weighed 30 pounds it then lost 16% of it's weight how much did pete lose

Find the area of the surface obtained by rotating the curve z=4e^2y from y = 0 to y =1 about the y-axis. the area is square units