The company president sets a goal that the percentage of working phones must increase from 30% to atleast 80% by the end of the day a. 3/10+x/x> =8/10 b. 3/10+1/x> =8/10 c. 3x/10x> =8/10 d. 3x+x/10+x> =8/10

The head librarian at the library of congress has asked her assistant for an interval estimate of the mean number of books checked out each day. the assistant provides the following interval estimate: from 740 to 920 books per day. what is an efficient, unbiased point estimate of the number of books checked out each day at the library of congress?

Are triangles the congruent? write the congruency statement.what is the congruency that proves they are congruent? what is the perimeter of ∆pqr?

Which of the following represents the factorization of the trinomial below? x^2+7x-30