6. Katie sells breakfast tacos in the UTSA Sombrilla plaza as part of a fundraliser the math for $1.49 each and c chorizo tacos of a fundraiser for club. Before setting up her stand, Katie buys m migas tacos f $1.99 each. She seils both types of tacos for $3.00 each: over the course of the morming she sells a total of k tacos, and gives the rest of the tacos to De. Patterson for free. Which of the following formulas correctly represents Katie's profit for the morning in dollars? 1019C A. P- 3.0ok-(1.49m+1.99c) B. P-(3.00-1.49)+(3.00-1.99) С. Ð .. (m-k) . (3.00-1.49) + (Ñ-k) . (300-199) D. We do not have enough information to find Katie's profit, because we do not know how many migas tacos and how many chorizo tacos she sold. 7. The figure below shows six complex numbers a, b, c, 4, e, and fin the complex plane. Which of the following statements is true? 1002E1 A. The number d is the mean of b and e. B. The number e is the mean of b and c. C The number e is the mean of b and/ D. The number c is the mean of a and f. 8. Goofus, who works for a political polling firm, is asked to conduct a poll that will estimate the percentage of people in San Antonio who support universal health care. Goofus sets up a table in the Sombrilla area at UTSA for a week and asks the first 1500 people who walk by the table to answer the question, "Would you support the passage of legislation to create a universal health care system in the United States? He uses the percentage of these 1000 people who answer in the affirmative as an estimate for the percentage of people who support universal health care. Which of the following is the most serious problem with Goofus's methodology? [017B] A. Goofus is using categorical data to measure public support for universal health care when interval data would be more appropriate. B. The sample Goofus uses for the poll is non-representative C. The poll question that Goofus asks is biased and misleading. D. Because the population of San Antonio is over one million, a sample of 2000 is too small to produce reliable results.