URGENT PLEASE HELP If you answer this correctly ill answer some of your questions you have posted! (29pts)

What is the absolute value of the complex number -4-sqrt2i

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 + 4x + 5 = 0

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.