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During strenuous activities such as exercising, the consumption of oxygen is greater than it's supply. As Oxygen is the final acceptor of electrons in the electron transport chain, without Oxygen the chai...

If the firm is able to identify the prices that each customer is willing to pay for their product, and if the company is able to charge different customers different prices. This practice is called price ...

(i) S₄=2+4+6+8=20

(ii)S₁₀₀= 2+4+...+200=2(1+2+...+100)=2(100+1)*(100/2)=10100

x^5+C

5(x+4)-3(2+3x)

Expand first bracket 

5x+20-3(2+3x) 

Expand second bracket

5x+20-6-9x

simplify

14-4x