Jack made three pies. If each piece was cut into eight pieces, and they had a total of 72 pieces to sell, how many pies did jill sell?

Jill sole 6 pies.

Step-by-step explanation:

Hope this helps :D brainliest?

the final price would be 29.6925

step-by-step explanation:

39.59 minus 25% equals 29.6925

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15