Two angles are . one angle is 55degrees° less thanless than four timesfour times the other. find the measures of the angles.

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

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.

Solve each quadratic equation by factoring and using the zero product property. 10x + 6 = -2x^2 -2