what property of addition allows us to change 2+4x into 4x+2 between the first and second lines?Plz help

Solve the problem. a student earned grades of c, a, b, and a in four different courses. those courses had these corresponding numbers of credit hours: 4, 5, 1, and 5. the grading system assigns quality points to letter grades as follows: a = 4, b = 3, c = 2, d = 1, and f = 0. compute the grade point average (gpa) and round the result to two decimal places. 3.40 3.50 8.75 2.18

Which number line represents the solution set for the inequality - x 24?

Polygon abcde is reflected to produce polygon a′b′c′d′e′. what is the equation for the line of reflection?