Use the equation of -b/2a, so if you have a line you can just plug in the numbers.
Answer:
63 days
Step-by-step explanation:
Answer:
57
Step-by-step explanation:
exterior angles add up to 360 so'
9x+1+5x+12+10x-37
24x-24=360
24x=384
x=16
10(16)-37
160-37
123
180-123
= 57