Answer:
0+=x^2-3x+18
Step-by-step explanation:
I'm smort- but if its wrong I apologize
The 18th month he will have to change both,
I hope this helped!
Answer:
The answer should round up to 40 minutes. Do it to make sure the answer is 4 which in this case = 40
Step-by-step explanation:

I guess you are asking the value of the Angle x, if so
it's equal to 180°-31° ==> mes angle x =149°
Answer: 180
Step-by-step explanation: 30 x 6= 180