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Evaluate the impact of a tax on sugar drinks. (This is probably more A-level than GCSE)

Analysis: First define tax and explain that this could be ad valorem (percentage of price) or per unit (set tax per unit). Explain why the government would want to do this - overconsumption can cause obesity...
BL
Answered by Bronwen L. • Economics tutor
2710 Views

GCSE Maths: Expand and simpify 14(3x-7y)-2x(21-y)

=((14 3x)-(14 7y))+((-2x 21)-(-2x y))=42x-98y-42x+2xy=2xy-98y
NH
Answered by Nathan H. • Maths tutor
3183 Views

Factorise 9a^2+6ab.

So what does it mean when we factorise? Well, we want to take the highest common factor (HCF) of both of these algebraic terms and we want to take that outside the back to simplify the expression. First, let...
RD
Answered by Rebecca D. • Maths tutor
4496 Views

What is the difference between 'ser', and 'estar'?

(An Introduction to Ser/Estar) Ser is used to convey essential qualities. When you introduce yourself and talk about your name, your appearance, your nationality, your occupation and your relationships - the...
AL
2502 Views

How does Shelley present evil through the monster in the novel Frankenstein as a whole?

Shelley presents a complex view of evil through the character of the monster. Shelley does this by providing the creature with a dual personality. In one essence, the monster is typified as being malicious a...
MR
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