Answer:
B
Step-by-step explanation:
Answer:
Work shown below!
Step-by-step explanation:
![\frac{2}{7} +\frac{2}{3}=\frac{6+14}{21}=\frac{20}{21}](https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7B7%7D%20%2B%5Cfrac%7B2%7D%7B3%7D%3D%5Cfrac%7B6%2B14%7D%7B21%7D%3D%5Cfrac%7B20%7D%7B21%7D)
Eight units I'm pretty sure
The sides of this triangle are 5x,6x abd 7x,
The perimeter of a triangle is the sum of all sides
We can suggest this inequation:
5x+6x+7x<54
18x<54
x<54/18
x<3
Therefore the lenght of the longest side would be:
7x<(7*3)
7x<21
Answer: the lenght of the longest side would be <21
It would then cost $90 because 25% of $120 is $30