Answer:
The answer is minus 7373838474
Step-by-step explanation:
Answer:
Yes
Step-by-step explanation:
Given

Required
Is D a subset of itself?
A subset is defined in such a way that, all elements of the subset can be found in the main set.
So; because set D contains all of its elements, then D is a subset of itself.

Answer:
Given statement: Ivan and Tanya share £150 in the ratio 4:1
let the number be x.
Then, the share of Ivan be 4x and the share of Tanya be x.
From the given scenario,
the equation that would best represent the given will be;
Combine like terms;

Divide both sides by 5 we get;

Simplify:
x =£30
Then,
the share of Ivan is, 4x = 
and the share of Tanya is, x =£30
Therefore, £90 more Ivan gets compared to Tanya.