Answer:
B.
Step-by-step explanation:
There are 10 marks between 7 and 8, therefore each mark is equivalent to 0.1
For 8.3, count 3 marks after 8:

First convert the fraction into decimal. Then count 6 marks from 7:
Answer:
Shop a
Step-by-step explanation:
1.60/4=£0.4 per battery
2.7/6= £0.45 per battery
Hence the batteries at shop a are cheaper
Answer:
5.600
Step-by-step explanation: