Answer:
fufh idjd j djj bcixbcjdbxjx. jx. he. jj FHA g j y j hh j y hcj hy h jejdjd j. djxjj. sndj j. djdjjd. cjdjdj. jdjjdjd. jdjdjd j jdjdjjejejd dkdjdjhdjsjjd
7×10^7 = 70000000 (10^7 = 10000000)
Always because the sum of x and y is 180 degrees. If x and y are right angles, then x and y are supplementary angles. Never because the sum of x and y has to be 90 degrees. If x and y are complementary angles, then y is a right angle.
