Salut/Hello!
Answer: a) £244 ; b) £17
Explanation:
First we need to know the cost of one apple.
27.30 : 78 = £0.35
a) [I'm going to assume you meant 698 apples here]
£0.35 x 698 = £244.3 with the approximate of £244
b) £0.35 x 49 = £17.15 with the approximate of £17
I hope it was helpful! :]