Factor completely. 81x4 - 1

Find the cosine function that is represented in the graph.

This stem-and-leaf plot represents the heights of the students on ralph's basketball team. one student's height is missing from the plot. if the mean height of all the students on the team is 61 inches, what is the missing height? a. 55 in. b. 59 in. c. 61 in. d. 65 in.

The holiday party will cost $160 if 8 people attend.if there are 40 people who attend the party, how much will the holiday party cost