Bob traveled 90 miles which was 83 1 3 % of his trip.
a
How long was the trip?

Total journey of bob was 108 miles .

Step-by-step explanation:

Here we have , Bob traveled 90 miles which was 83 1 3 % of his trip. We need to find How long was the trip .Let's find out:

According to question , Bob has traveled a distance of :

⇒

Which is of his journey . So , Let total  miles be x , So we have following equation framed according to question as :

⇒

⇒

⇒

⇒

⇒

⇒

Therefore , Total journey of bob was 108 miles .

c.

step-by-step explanation:

substitution for (0,1)

y=x^2+4x+1

1=0^2+4(x)0+1

1=0+4(x)0+1

1=4(x)0+1

1=0+1

1=1

substitution for (-3,-2)

y=x+1

-2=-3+1

-2=-2