Answer:
Remi bought 3 notebooks
Step-by-step explanation:
Let n = number of notebooks.
2 pencils cost 2 * £0.24 = £0.48
3 pens cost 3 * £0.37 = £1.11
3 sharpeners cost 3 * £0.77 = £2.31
n notebooks cost n * £1.40 = £1.4n
The total cost is £9 - £0.90 = £8.1
0.48 + 1.11 + 2.31 + 1.4n = 8.1
1.4n + 3.9 = 8.1
1.4n = 4.2
n = 3
Answer: Remi bought 3 notebooks.