What would this inequality be “six more than three times a number is less than or equal to two times the number minus one.”?

Akitchen floor is made up of tiles that are in the shape of the triangle shown there are 40 tiles on the kitchen floor what is the total area of the floor

To prove that def ~ gfh by the sss similarity theorem using the information provided in the diagram, it would be enough additional information to know that

Asphere has a diameter of 10 in. what is the volume of the sphere?