Mary’s employer of 22 years offers a pension plan that is the product of the three year average of her most current salaries, the number of years of service, and a 2% multiplier. Her last three salaries are: $64,500, $65,000, and $66,500. What is her annual pension benefit?

step-by-step explanation:

answer: 2 and 1

step-by-step explanation: got this question

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