Please, i need help with letter B

The estimated number of people to attend the last bengals game of the season was 2000. the actual number of fans attending was 1200. by what percent did the estimate differ from the actual?

Asource of laser light sends rays ab and ac toward two opposite walls of a hall. the light rays strike the walls at points b and c, as shown below: what is the distance between the walls?

Wrong answers will be reported! (3,7), (10, 0), (2.5, 1)1. using the vertices of the feasible region you identified in #7, tell which of the vertices maximizes, and which minimizes, the following objective equation: p=8x+3y2. why do we often use x0 and y0 as constraints in a linear programming (optimization) problem?