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
Learn more about Solving Inequalities at:
#learnwithBrainly
Oh my God I’m doing the same thing in school not the same question but it is so hard I wish I could help you but I’m confused on that subject to
Answer:
<em>2</em><em>,</em><em> </em><em>4</em><em>,</em><em> </em><em>8</em><em>,</em><em> </em><em>1</em><em>6</em><em>,</em><em> </em><em>3</em><em>2</em>
<em> </em><em> </em><em> </em><em> </em><em>is</em><em> </em><em>non-linear</em><em> </em><em>pattern</em>
<em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em>
Step-by-step explanation:
--------------------------------------
1st
-4+6=2
2+6=8
8+6=14
14+6=20
3rd
3+3=6
6+3=9
9+3=12
12+3=15
4th
5+4=9
9+4 =13
13+4=17
17+4=21
<em>But</em><em> </em>
2nd
2×2=4
4×2=8
8×2=16
16×2=32
We can set up an equation with x as the price of one cup:
4x=0.96
x=0.96/4=0.24
Each cup is $0.24
Hope this helped!