Demi is working on a presentation about a famous mathematician for her math class. She decides to make her poster in the shape of a plus sign.
20 in
12 in
12 in
20 in
What is the total area of Demi's poster?

Apool measures 12.3 feet by 16.6 feet. if the longer wall of the pool has a diagonal of 17.8 feet, what is the volume of the pool? (round to nearest tenth)

Perry observes the opposite parallel walls of a room in how many lines do the plains containing the walls intersect

The input to the function is x and the output is y. write the function such that x can be a vector (use element-by-element operations). a) use the function to calculate y(-1.5) and y(5). b) use the function to make a plot of the function y(x) for -2 ≤ x ≤ 6.