1. the last one
2.the first one hope this helps.
6/40 is equalvilant because all you have to do is double or simplify it by 2
Nearest tenth 243.9
nearest hundredth 243.88
nearest thousand 243.876
nearest ten 244
Angles of a triangle add up to 180 degrees and then we take away the right angle
180-90=90
5x+5x=10x
90/10=9
x=9
