Help please. Thanks

Evaluate-27 ^4/3/8 a) - 81/16 b) 81/16 c) 16/81

Solve for x -2.3(r - 1.2 ) = -9.66 enter you answer as decimal.

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)