If (m-n)/n = 4/9 what is the value of n/m

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

If the scale factor between two circles is 2x/5y what is the ratio of their areas?

The perimeter of a rectangle is 42 inches. if the width of the rectangle is 6 inches, what is the length