Do tessellations have to be polygons?

Which of the following is not a condition for a tessellation?

The shape or shapes must be repeated.

The shapes must not overlap.

There can be no gaps.

The shapes must be polygons.

What is 6.213 as a mixed number

Reese paid $280 for his skis after a 30% discount. What was the original price?

Which of the sets of ordered pairs represents a function? A = { (3,-5), (4, 6), (-3, 9), (2,7) } B = { (2,4), (-1, - 7), (5,6), (4,3) }

What is the partial quotients of 258 divided by 6

34 is added to x, the result is 98. What is the value of x?

Which expression is equivalent to x-2/y

The distance between City A and City B is 250 miles. A length of 1.7 feet represents this distance on a certain wall map. City C and City D are 3.74 feet apart on this map. What is the actual distance between City C and City D?

Write the product as a trinomial. (m - 5) (m + 2)

You are standing 50 meters from a hot air balloon that is preparing to take off. The angle of the elevation to the top of the balloon is 28. Find the height of the balloon

Alice earns a monthly salary of $315 plus a commission on her total sales. Last month her total sales were $9640, and she earned a total of $1182.60. What is her commission rate?