Are the two triangle similar? If so, why are they similar?

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 angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

Atemperature of 1.64◦f corresponds to answer in units of ◦c.