E and Fare sets of real numbers defined as follows. E=\ y|y<=4\; F=\ y|y>6\ Write E cup F and E cap F using interval notation. If the set is empty, write emptyset .

Officer brimberry wrote 24 tickets for traffic violations last week, but only 9 tickets this week. what is the percent decrease? give your answer to the nearest tenth of a percent.

How do i do this activity, is appreciated

What are the coordinates of the point that is 1/3 of the way from a to b? a (2,-3) b (2,6)