The coordinates of the vertices of quadrilateral HIJK are H (1,4) I (3,2) J (-1,-4) K (-3,-2). If quadrilateral HIJK is rotated 270º about the origin, what are the vertices of the resulting image, quadrilateral H'I'J'K'?

Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).

Frank is lending $1,000 to sarah for two years. frank and sarah agree that frank should earn a real return of 4 percent per year. instructions: a. the cpi (times 100) is 100 at the time that frank makes the loan. it is expected to be 113 in one year and 127.7 in two years. what nominal rate of interest should frank charge sarah?

I’m really confused and need to learn this