Question :

The cost, C, of hiring a lorry to travel n miles is given by C=a+bn where a and b are constants. The cost of travelling 100 miles is 82. the cost of travelling 250 miles is 157 a find out the value of a and b b work out the cost of hiring a lorry to travel 300 miles Please show working out clearly, ill award a brainliest answer!!!!!

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