LESSON 14-1 PRACTICE 19. Create a table of values to determine the solution to the following system of equations. y=-x-2 3 20. Determine which of the points ((1, -2).(-1,2), (1, 2), (1, -2)], 1f any, are solutions to the system of equations. 2x + y = -1 21. Graph each of the equations below and use your graph to determine at which value of x the values of y are the same. [2x-12y = -3 (x + 4y = -4

Two language majors, anna and megan, took exams in two languages. anna scored 85 on both exams. megan scored 74 on the first exam and 85 on the second exam. overall, student scores on the first exam had a mean of 82 and a standard deviation of 4, and the second exam scores had a mean of 71 and a standard deviation of 13. a) to qualify for language honors, a major must maintain at least an 85 average across all language courses taken. so far, which of anna and megan qualify? b) which student's overall performance was better?

Find the number of liters in 12.8 gal of gasoline. round to the nearest hundredths

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?