Which of these graphs represents a function? -5-4-3-2-1, 1 2 3 4 5
-5-4-3-2-11
-5
-5
w.
X.
.4-3-2-1,
1 2 3
5-4-3-2-13
1 2 3 4 5
.51
Y.

The number of revolutions of two pulleys is inversely proportional to their diameters. if a 24-inch diameter pulley making 400 revolutions per minute is belted to an 8-inch diameter pulley, find the number of revolutions per minute of the smaller pulley.

Henry is an avid reader, he devours 90 pages in half an hour how many pages has henry read per minute?

8. kelly wants to buy a magazine that is $25. later the magazine was marked up an additional 20%. what is the new price?