Anyone up for a conversation?

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)}

Measure of angles 31 (x+4) (3x+9) me

2.5 milligrams is equivalent to how many grams