What is 4/3 x 19/6-45 x 7

Do u just plot the numbers on the graph like (1,

Given: x + y = 6. if xe (-15, -6, -1), then which of the following sets of ordered pairs are solutions? © {(-15, -21), (-6, -12), (-1, -7)} [(-15, 21), (-6, , 7)} {(-15, 21), (-6, 12), (-1, -7)}

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels