Answer: £245
Step-by-step explanation:
24.5 hours from wednesday to saturday
24.5 X 10 = 245
Let's look at the corresponding ratios:

And we see that the three aren't equal.
Hence, $\Delta ABC$ and $\Delta EDC$ are not similar.
The set X = { x , {x} } would, I think, fit the Bill
So its 2 elements
Answer:
$3125
Step-by-step explanation:

A = 250(1 + 0.25)ⁿ
A = (312.5)ⁿ
n = 10
A = $3125
A = I