The total profit p (in millions of dollars) earned by a company from 1995 to 2004 can be modeled by p=3500+500t/98-t where t is the number of years since 1995. the number n (in hundreds of thousands) of units sold can be modeled by n=(t+7)(3000-20t)/490-5t whete t is the number of years since 1995. write a model that gives the profit earned per unit per year. then approximate the profit per unit in 2002

(-5,-28)

i graphed to on desmos.

option 3 . (5x + 1) - (-10x + 6)

step-by-step explanation:

option 1 :

(4x + 3) + (-9x + 4)

or 4x+3 -9x + 4

or -5x + 7

option 2

(x - 2) - (6x - 9)

or x-2-6x + 9

or -5x + 7

option 3

(5x+ + 6)

or 5x + 1 + 10x -6

or 15x -5

option 4

-4x+2x+7-3x

-7x + 2x + 7

-5x + 7

hence only option 3 did   not satisfy the given simplify expression.

180°

step-by-step explanation:

sum of equilateral triangle=180°

< n=60°

< m=120°°[angle supplementary of equilateral angle]

< m+< r+< x=360°(sum of exterior angle of triangle)