Linear equation 4x-1=9​

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

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?

Which of the following is closest to 32.9 x 7.5? a: 232 b: 259 c: 220 d: 265