What are the solutions to the expression (x+3)^2=81
−3 and 3
−6 and 12
−9 and 9
−12 and 6

In the diagram, the measure of angle 9 is 85° which angle must also measure 85°?

Jessica and martha each have a bag of cookies with unequal quantities. they have 30 cookies total between the two of them. each of them ate 6 cookies from their bag. the product of the number of cookies left in each bag is not more than 80. how many more cookies will jessica have martha? if x represents the number of cookies jessica started with, complete the statements below.the inequality that describes the relationship between the number of cookies each one of them has is x^2 - x +224 > = 0.jessica has at least cookies more than martha.

Prove that quadrilateral is a rhombus.