The answer is 24 as it's the smallest number given that is divisible by both 6 and 8.
Y=-3x+23
distribute -3, get y alone (add 2 to both sides)
You're given two angles and the side not between them are congruent, so the AAS theorem applies. (2nd selection)
30 since that’s the lowest number both 3 and 10 can fit in
