A mechanic take 70 minutes to repair car another mechanic can do the same job in 30 minutes how long in minutes will it take them working together to repair a car A. 20
B. 50
C. 40
D. 21 ​

Y= 4x + 3 y = - 1 4 x - 5 what is the best description for the lines represented by the equations?

Aline has a slope of . which ordered pairs could be points on a parallel line? check all that apply. (-8, 8) and (2, 2) (-5, -1) and (0, 2) (-3, 6) and (6, -9) (-2, 1) and (3,-2) (0, 2) and (5,5)

32a³b² 8ab² simplify the following expression.