The cost of producing x soccer balls in thousands of dollars is represented by h(x)=5x+6 the revenue is represented by k(x)=9x-2 which expression represents the profit (k-h)(x) of producing soccar balls
A) 14x-8
B)14x+4
C)4x-8
D)4x+4

Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)