Find the number of pens they need to sell to break even (when R = C).

R=10x

C=2x+7000

P=R-C

a)

Substitute R and C into the equation for P:

P=10x - (2x+7000)

Now substitute 1000 for x and solve for P which is the company's profit if they sell 1000 pens.

b)

Set R equal to C

R=C

Plug in R=10x and C=2x+7000

10x=2x+7000

Solve for x which will be the amount of pens required to be sold to break even.

Step-by-step explanation:

I had to think through.

I hope this helps you :)

x ≥ 18 is your answer

step-by-step explanation:

let "a number" = x

(2/3)x + 17 ≥ 29

isolate the variable (x). do the opposite of pemdas (parenthesis, exponent (& root), multiplication, division, addition, subtraction).

first, subtract 17 from both sides.

(2/3)x + 17 (-17) ≥ 29 (-17)

(2/3)x ≥ 29 - 17

(2/3)x ≥ 12

next, multiply 3/2 to both sides to isolate the x

(3/2)(2/3)x ≥ 12(3/2)

x ≥ 12(3/2)

simplify. multiply, then divide

x ≥ (12 * 3)/2

x ≥ (36)/2

x ≥ 18

x ≥ 18 is your answer

~

if you need just tell me and i will come to the rescue.

step-by-step explanation: