Answer: 144 inches.
Step-by-step explanation:
1. To solve this problem you must remember the formula for calculate the perimeter of a rectangle, which is shown below:

Where
is the lenght and
is the width.
2. You know the perimeter and the width, then you can solve for the length, as following:

Suppose that a=42, b=35, c is unknown, and C = 120°

Answer:
Step-by-step explanation:
look this up it give you the answer
let me know if this help plzz
3x=117
3(14)=117
51=117
3x=117
3x/3 = 117/3
X=39
Antonio needs to sell 39 animal balloons in order to make $117.