Answer:
-2/3 -3/5 -1/2 3/8
..................……
-3g -4
Step-by-step explanation:
plz brainestt
Present Day:
Bob:Rob:Difference
3 : 4 : 1
6 : 12 : 2
4 years ago:
5 : 7 : 2
5.218
5 or more, you add one. Four or less, you change it to zero.