Answer:
[tex]100:37[/tex]
Step-by-step explanation:
For every pound a company spends on advertising it spends £0.37 on its website.
Ratio of the the total amount spent on advertising to the amount spent on its website is,
[tex]=\dfrac{1}{0.37}[/tex]
[tex]=\dfrac{1\times 100}{0.37\times 100}[/tex]
[tex]=\dfrac{100}{37}[/tex]
[tex]=100:37[/tex]
Therefore, the ratio of the the total amount spent on advertising to the amount spent on its website is [tex]100:37[/tex]