Which statements are true about the ordered pair (−1, 5) and the system of equations? {x+y=4 {x−y=−6 a. the ordered pair (−1, 5) is a solution to the first equation because it makes the first equation true. b. the ordered pair (−1, 5) is a solution to the second equation because it makes the second equation true. c. the ordered pair (−1, 5) is not a solution to the system because it makes at least one of the equations false. d. the ordered pair (−1, 5) is a solution to the system because it makes both equations true.

Lab 1: central tendency and standard deviation directions: use excel to compute descriptive statistics. problem: you are the manger of a fast food store. part of your job is to report to the boss at the end of each day which special is selling best. use your knowledge of descriptive statistics and write one paragraph to let the boss know what happened today. here are the data. use excel to compute important values (mean, median, mode, and standard deviation). make sure to include a copy of your work. this should be submitted via canvas (no exceptions). make sure you include your excel work in addition to a summary of the results. special number sold cost huge burger 20 $2.95 baby burger 18 $1.49 chicken littles 25 $3.50 porker burger 19 $2.95 yummy burger 17 $1.99 coney dog 20 $1.99 total specials sold 119