Answer:math isn't my expertise
Step-by-step explanation:because i don't pay attention
18) Value of b is : 
Option A is correct.
19) Option C is correct.
Step-by-step explanation:
18) We need to find the value of b.
The given equation is:

Solving to find the value of b:

So value of b is : 
Option A is correct.
19) We need to find the correct graph of the equation:

Solving:

The values of y will be less than three. As y < 3 so, the circle on y is not filled.
So. Option C is correct.
Keywords: Solving Inequalities
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Answer: it’s Sara paid 3
Step-by-step explanation:
Answer:
no clue what it is I answerd your question
Answer:
Step-by-step explanation:
let ∠GEF=x
then ∠GFE=90-x
