Which difference of integers is represented on the number line? A) −8 − 15
B) 8 − (−7)
C) −8 − (−7)
D) −8 − (−15)

Can you me find the missing length. i attached an image.

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

Bag a contains 3 white marveled and 2 marbles bag b contains 6 white marbles and 3 red marbles a person draws one marbles from each bag find the probability that both marbles are white