Answer:
180 is the least number that is exactly divisible by 9,12 and 15
3x+7+4x-16= 180 degrees
7x-9=180
7x=189
x= 27
yax= 3x+7
3*27+7= 81+7 = 88
maybe 223 degrees
Step-by-step explanation:
c
because I had a test on these