Simplify : -sqrt(9+y)^2 if y<-10

Given f(x) = 2x^2- 5x+1, determine the function value f(2). do not f(x) = in your answer

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.

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?