Geometry:Finish the coordinate rule for a 90 degree rotation.
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Suppose m: angle a =77 degrees what is the measure of a complement of a complement of angle a, what is a conclusion you can draw about a complement of a complement of an angle

The length of a rectangular board is 3 feet less than twice its width. a second rectangular board is such that each of its dimensions is the reciprocal of the corresponding dimensions of the first rectangular board. if the perimeter of the second board is one-fifth the perimeter of the first, what is the perimeter of the first rectangular board?  

Brainliest sealy's parents gave her $70 to spend at the briarridge fair .she spent $10 on flowers. if each antique flower vase at the fair costs$3 each, solve the inequality 10+3a≤70 to determine how many antique flower vases can sealy buy?