Answer : 32
( angles of a triangle add up to 180)
A reflection of horisontal
C) I think you know the increasing line is the one with 3*x and the other one is -2*x, then the dotted line requires <, instead of <=, the rest I'm sure you can figure out.
Let me know if you need more explanation, but it's to make sure next time you answer someone, instead of asking! :)
AB= 2.5 cm BC= 4.6 cm It's too easy, Just use your mind!
