X = 4, -2 that should be the roots(zeros) of the function.
Answer:
54.5454%
Step-by-step explanation:
6/11=0.545454545454 and that as a percentage is 54.5454%
75/3000=x/4000
times both sides by 1000
75/3=x/4
times both sides by 4
300/3=x
100=x
answer is 100 hours