PLEASE HELP Evaluate: -(X to the power of 2) for X=(-3)
A. 6
B. -6
C. 9
D. -9

How do i do this activity, is appreciated

If f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)

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)