A company makes perñis . They sell each pen for $9.

Their revenue is represented by R = 9x.

The cost to make the pens is $2 each with a one time start up cost of 7000.

Their cost is represented by C = 2 x + 7000.

a) Find the profit, P, (P = R - C) when the company sells 1000 pens

x+14

step-by-step explanation:

rotation point l

step-by-step explanation:

1.30

step-by-step explanation:

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴

- use the rule

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴

* the solution of the equation is 2.23 to the nearest 2 decimal places