Solve the system of linear equations by graphing. Round the solution to the nearest tenth as needed. y + 2.3 = 0.45x
–2y = 4.2x – 7.8

a.(2.4, –1.2)
b.(–1, 2.5)
c. no solution
d. infinitely many solutions

20 only answer if 100% sure most high school-aged teens are very active. a. true b. false

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 real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2