Use the diagram to find x and z

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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)

How can you use synthetic substitution to tell whether a given binomial is a factor of a polynomial?

Ling is using fraction strips to add 2/3 and 7/12's the sum is one whole plus how many twelves?