Which number sentence states that n is at LEAST 20? O A. n< 20 O B. n < 20 C. n = 20 O D. 71 20 o E. n > 20​

Graph y ≥ -x^2 - 1. click on the graph until the correct graph appears.

Thales was an ancient philosopher familiar with similar triangles. one story about him says that he found the height of a pyramid by measuring its shadow and his own shadow at the same time. if the person is 5-ft tall, what is the height of the pyramid in the drawing?

What will the graph look like for a system of equations that has no solution? a. the lines will be perpendicular. b. the lines will cross at one point. c. both equations will form the same line. d. the lines will be parallel.