1 1 2 A certain blueprint shows two fences. Fence A is 15 feet long but is 17 inches long on the blueprint. What is the unit rate for inches per foot on this blueprint? If fence B is 4 feet long, how long is fence B on the blueprint? The unit rate is inch(es) per foot. (Simplify your answer. Type an integer, fraction, or mixed number.)

Correct option: B

When we say a is no more than b, we express this in a mathematical language as follows:

In this inequality, we know that the area of the triangle is no more than 168 in². In other words, if the area is named , then:

We also know that the height of a triangle is 4 inches greater than twice its base. Translating this in a mathematical language:

From geometry, we know that the area of a triangle is given by:

Matching (1), (2) and (3):

Since the length of the base of the triangle is , then

Finally, correct option is B.