I think the answer might be C i hope this helps you
You havent given the full question!
Since there is a variable, there are infinitely many solutions.
Answer:

Step-by-step explanation:
We are given the following in the question:
Height of triangle,h = 4 inches
Area of triangle =

where b is the base of the triangle and h is the height of the triangle.
The area of the triangular sign must be less than 18 square inches.
Thus, we can write the inequality:

The above inequality is the required inequality that describes the possible base length of the triangular sign.
Answer: 1/5 a foot taller
Step-by-step explanation: Basically you just subtract 2/5 from 3/5. That gives you 1/5.