Please help fast for geometry pros, use statement and reason!! In rectangle ABCD the diagonals intersect each other at point O and ABD = 30. Find BC if AC = 16 in.

Last year, a state university received 3,560 applications from boys. of those applications, 35 percent were from boys who lived in other states. part a)how many applications did the university receive from boys who lived in other states? part b)applications to the university from boys represented 40percent of all applications. how many applications did the university receive in all? i don't how to do part b so me and plz tell how you got your answer

What is the slope of the line shown below?

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 4x^2 - 19x- 5