I you borrow 500 for 4 years at an annual interest rate of 6% HOW MUCH WILL YOU PAY altogether ​

620

amount= p+i , to find interest .I=500*4*6/100 =120 amount=500+120=620

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

80x^8−68x^6+16^5−20x^4−4x^3+8x^2

hope i'm right lol