.Answer:
Step-by-step explanation:
Answer:
170929
Step-by-step explanation:
42n, you can't take the "n" away. The "n" means times a number, so I I write n=2, then the expression will be 42 x 2, substitute the n with a 2
Answer:
72.6
Step-by-step explanation:
180-107.4 = 72.6