I have no idea with this question and my assesment is tomorow help needed desperetly brainliest for answer and explenation.

Answer:
a) £6.70 b)6.4%
Step-by-step explanation:
a) 105.20-98.50=6.70
b)105.20-98.50/105.20 x100= 6.4%
i hope i got it right welp