What is equivlent to 12x+(−7)−214x−(−2)

Complete the statements about the system of linear equation respresented by the tables the equation respented the left table is

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

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