Point S has the coordinates (6, –4). On a coordinate plane, point R is 6 units to the left and 4 units up. Point S is 6 units to the right and 4 units down. Point T is 6 units to the left and 4 units down. Point U is 6 units to the right and 4 units up.

Which point on the graph shows the reflection of point S across the y-axis?
R
A
T
U

In the diagram below, tan θ = sqrt 3. what is the value of m?

The head librarian at the library of congress has asked her assistant for an interval estimate of the mean number of books checked out each day. the assistant provides the following interval estimate: from 740 to 920 books per day. what is an efficient, unbiased point estimate of the number of books checked out each day at the library of congress?

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?