Brainliest if someone can match the correct answers to the correct working out. maths urgent plzzz

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

Apolynomial function has a root of –6 with multiplicity 1, a root of –2 with multiplicity 3, a root of 0 with multiplicity 2, and a root of 4 with multiplicity 3. if the function has a positive leading coefficient and is of odd degree, which statement about the graph is true?

Find the area of the triangle shown 3 by 6