A baker purchased 11 lb of wheat flour and 10 lb of rye flour for a total cost of $15.20. A second purchase, at the same prices, included 14 lb of wheat flour and 15 lb of rye flour. The cost of the second purchase was $21.05. Find the cost per pound of the wheat flour and of the rye flour.

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step-by-step explanation:

what level of math? also i don't need to be paid if i can you.

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