The cost of attending a meeting in Panchester, From home to the car park is 41 miles each way. 1 hour and 8 minutes time travel each way. Parking £15.00 per day. Fuel costs £1.36 per litre, cars fuel consumption is 30 miles per gallon

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204

the answer is b.

step-by-step explanation:

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