You decide to buy a 60-inch plasma-screen tv. to do so, you borrow $4,300 from the electronics store at 1.8 percent per month simple interest, with no payments due for two years from the date of purchase.

how much do you owe on the loan after 15 months? round your answer to the nearest whole dollar.

it’s supposed to be -4+45=41

step-by-step explanation:

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