Find the surface area 12 ft, 8ft, and 2ft

For f(x) = 3x+1 and g(x) = x2 - 6, find (g/f)(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)

Find the measurement of angle b in the following triangle