The table shows a pattern of exponents. Powers of 5 Value 5 cubed 125 5 squared 25 5 Superscript 1 5 5 Superscript 0 1 5 Superscript negative 1 One-fifth 5 Superscript negative 2 StartFraction 1 Over 25 EndFraction What is the pattern as the exponents decrease? subtract 5 from the previous value subtract 100 from the previous value divide the previous value by 5 divide the previous value by 25

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)