The mean number of words per minute (WPM) typed by a speed typist is 143 143
with a standard deviation of 12
12
WPM.

What is the probability that the sample mean would be greater than 142.2
142.2
WPM if 76
76
speed typists are randomly selected?

Graph red beads cost $1 an ounce and gold beads cost $3 an ounce. juanita wants to purchase a 12-ounce mixture of red and gold beads that she can sell for $2 an ounce. the solution of the system shows the number of beads needed for juanita to break even. x + y = 12, x + 3y = 24 how many ounces of red beads will juanita buy to break even? how many ounces of gold beads will she buy?

Urgentwhat is the area of the figure?

During how many months was the difference between the number of days with homework and with no homework greater than 6?