Answer: y≤ 
Step-by-step explanation:
Since we are given the equation, all we have to do is to fix the inequality. We have four options: <, >, ≤, and ≥. The line in the graph is a solid line. This means the line reaches and is equal to the points on the line. We can automatically eliminate ≤ and ≥. Now, we know the answer is ≤. The shading shows that the answer is less than 7/3x+2. In other words, y≤
.
60% = 60/100 = 0.6
25% = 25/100 = 0.25
0.25n = 0.6 * 40
0.25n = 24
n = 24 / 0.25
n = 96
Use dilution
c(intial)=
v(intial in 100mg)=
c(final)=
v(final)=
Make them equal to each other to find their intersection since both equal y
-1/2x+4=y=3/2x
-1/2x+4=3/2x
add 1/2x both sides
4=4/2x
4=2x
divide by 2
2=x
sub back
y=3/2x
y=3/2(2)
y=3
(2,3) is the solution or intersection point