Sam bought 7 pencils. He had $24 before he bought the pencils. After he bought the pencils he had $10 left. How much did each pencil cost?

Each pencil costs $2

Step-by-step explanation:

# of pencils = 7

Total amount = $24

Amount left = $10

$24 - $10 = $14 on 7 pencils

$14/7

= $2

4

step-by-step explanation:

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