If i started class at 1: 30 and class ends in 90 minutes what time is class over?

Find the solution of system of equation y= x-4 y=4x+2

Correct answer brainliest asap an d 99 pointsss what are relative frequencies to the nearest hundredth of the columns of two way table column a 102, 18 colunm b 34, 14 answers choices 0.15 0.25 0.29 0.44 0.56 0.71 0.75 0.85

Taking algebra two apex courses and need with these questions