20 points Use either the commutative property or combine like terms to create an equivalent expression to from the equation 9 x j(2 + 5).

Ac contractor is building a new subdivision outside of the city. he has started work on the first street and is planning on the other streets to run in a direction parallel to the first. the second street will pass through (-2,4) find the equation of the location of the second street in standard form. a.2x+y=2 b. x-y=2 c.2x+y=2 d.x+y=2

The sum of two numbers is 86, and their difference is 20. find the two numbers

Use complete sentences to differentiate between a regular tessellation, and a pure tessellation. be sure to include specific types of polygons in your explanation.