Answer:
is there a number of hours he took to get back?
15
10
Step-by-step explanation:
3/8 x £40 = £15 for Sarah
3/8 x £40 = £15 for Fiona
2/8 x£40 = £10 for david
y=mx+b
pretty sure its $72.94
1921
1700 * (1 + 0.13) = 1921