N[A*B] in SET theory means?

Has grades of 71 and 87 on her first two algebra tests. if she wants an average of at least 75, what possible scores can she make on her third test

How do I solve this equation? 2 tan 4x - 4 = 0

A lot of 9 components contains 3 that are defective. Two components are drawn at random and tested. Let be the event that the first component drawn is defective, and let be the event that the second component drawn is defective.

How do you find the area of a cube measuring 3ft it has 7sides

Johnny has 27 buttons. he gives away b buttons. choose the expression that shows the number of buttons johnny has left. b, 27, bplus27, or27-b

2x=12 what is the answer i'm confused

Kathryn bought a magazine for $4 and five erasers. She spent a total of $14. How much did each eraser cost?

Factor Completely: x2 + 16

How do you find out area for the formzual for area would be what-

Sheryl has 7 2/3 hours this weekend to work on her now video. She estimates it will take 1 3/4 hours to ip sync the new song and 3 1/2 hours to learn the new dance steps. How much time will she have left for her VIV interview?