Answer:
No, I don't think so; an equation must have an equal sign in it. Expressions, however, do not have equal signs in them. Therefore I think 15 + k is an <em>expression</em>, not an equation. Hope this helps :)
I belive x=4.9
Step-by-step explanation:
the answer is 48 because 12x4 equals 48
that other person is right
y=-3x+3
35.6
cos = adj/ hypt
cos (77) = 8/x
x = 8/cos (77) = 35.56
