Find the simplest polynomial with the roots 4,-2, and 1

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

Ann and betty together have $60 ann has $9 more than twice betty’s amount how much money dose each have

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.