PLEASE HELP WILL GIVE GOOD RATINGS AND 15 POINTS!! I will give BRAINLIEST

The equation y = 1.99x represents the cost y for x downloaded songs. Is this equation a direct variation? Explain.

a.

yes; The graph passes through the origin and has a constant variation.

b.

no; The ratio of y to x in the equation is not constant.

c.

no; The equation does not have a constant variation.

d.

no; The graph does not pass through the origin.

Factor k2 - 17k + 16. a.(k - 2)(k - 8) b.(k - 1)(k + 16) c.(k - 1)(k - 16)

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

Math it's appreciated. (picture provided)