On the day of the field trip, each teacher must call the parents of any student who has not returned a
permission slip. all of mr. gomez's students returned their permission slips, so he did not have to make any
calls. mrs. hooper and mr. anderson had to call a total of eight parents. mrs. hooper needed to call two more
students than mr. anderson. which set of equations correctly describes the phone calls made? (let h = mrs.
hooper's calls and a = mr. anderson's calls.)

How many of the 250 grandparents in the population would you expect to prefer online shopping with merchant a? merchant a: 4 merchant b: 6 merchant c: 2 merchant d: 3 other: 5 none: 5 answer choices: a.about 4 b.about 8 c.about 40 d.about 21

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

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?