a. positive or negative which one is greater hint: negative....0.....positive
b. add a 0 to 6.7 it will make it much easier. 6.70<6.72?
c. do the same thing you did for b. -5.82<-5.7
d. do the same thing you did for b & c. -9.60>-9.18
I hope this helped :)
