Rylee has a pack of 40 ballons. in the pack, there are 7 red, 12 green, 11 blue, and 10 yellow balloons. when grabbing a balloon, she expects to grab a yellow ballon of the time.

1/4

Step-by-step explanation:

If she expects yellow, the probability of that happening is 10/40 = 1/4

So if she draws 4 balloons she should expect to get 1 yellow one.

$8

step-by-step explanation:

it is pretty much backwards.

you take the 4x2 multiply that, and that is = $8

d 25 pi/6

step-by-step explanation:

the diameter is 10 inches

the radius is 1/2 of the diameter or 5 inches

the area of the circle is

a = pi r^2

  = pi 5^2

  = 25 pi

the slice is 60 degrees of the entire circle.

60 degrees out of 360   60/360 = 1/6

the area of the slice is 1/6 of the circle

a slice = 1/6 a circle

a slice = 1/6 * 25 pi