in a group of 21 students 8 students take art class courses 7 students take music courses to take both courses. a student is chosen randomly from this group. what is that the students takes either art or music courses?​

Graph the equationy=x^2 -[tex]y = x^{2} - 2[/tex]

The table below shows the approximate height of an object x seconds after the object was dropped. the function h(x)= -16x^2 +100 models the data in the table. for which value of x would this model make it the least sense to use? a. -2.75 b. 0.25 c. 1.75 d. 2.25

Iwill give brainliest. suppose tommy walks from his home at (0, 0) to the mall at (0, 5), and then walks to a movie theater at (6, 5). after leaving the theater tommy walks to the store at (6, 0) before returning home. if each grid square represents one block, how many blocks does he walk?