Total Distance = 4km
Each person takes 4/5km
Calculate the number of times the tent has to change hands:

Answer:
1/4
Step-by-step explanation:
Answer:

Step-by-step explanation:








and 
Therefore, the values of
are 8 and -11.
Answer:
b
Step-by-step explanation:
the difference between a full jug and a jug that is half full will give us the weight of the marbles only in a half full jug:
4 - 2.6 = 1.4 kg
In a half full jug that weighs 2.6 kg, the weight of the marbles is 1.4 kg
the weight of the jug = 2.6 - 1.4 = 1.2 kg