What is the answer to this qution a circular swimming pool is 21 feet in diameter. what is the circumference of the pool? use 22/7 for pie

Which point lies on a circle with a radius of 5 units and center at p(6, 1)?

Can any one me with the answers to these questions asap?

The fraction of defective integrated circuits produced in a photolithography process is being studied. a random sample of 300 circuits is tested, revealing 17 defectives. (a) calculate a 95% two-sided confidence interval on the fraction of defective circuits produced by this particular tool. round the answers to 4 decimal places. less-than-or-equal-to p less-than-or-equal-to (b) calculate a 95% upper confidence bound on the fraction of defective circuits. round the answer to 4 decimal places. p less-than-or-equal-to