A license plate begins with three letters. If the possible letters are A, B, C, D, and E, how many different plates with these letters can be made if no letter is
used more than once?

Which graph represents the function g(x) = |x + 4| + 2?

Atourist boat is used for sightseeing in a nearby river. the boat travels 2.4 miles downstream and in the same amount of time, it travels 1.8 miles upstream. if the boat travels at an average speed of 21 miles per hour in the still water, find the current of the river.

What is the measure of ac? enter your answer in the box. (4x - 5.5) (5x+25)