Find the area of this regular polygon.

Atriangle has side lengths of 15 inches and 30 inches. it also has angles that measure 45º and 20º. which of the following identifies the possible third angle of the triangle? a. 15 in., 65º b. 45 in., 65º c. 17 in., 115º d. 14 in., 115º

Maria walks a round trip of 0.75 mile to school every day. how many miles will she walk in 4.5 days

What is the sum of these mixed numbers 4 2/3+ 3 1/9