Which of the following systems of inequalities would produce the region indicated on the graph below?
A. VS-x+4; y B.VS - x+4; y>x+ 2; y 2 0;x20
C. VS-x+4; y Sx+ 2; y 20:40
D.VS -x+4; y2x+2; 20;x20

the line rising to the right has equation y = x + 2

and the  other one has equation y =  -x + 4

the lines are solid so the inequalities will be <= or >=

in both case  the shading is below so the sign is <=

also x and Y values are both positive  

so the answer is choice  C

Total number of T-shirts= 200

Cost per T-shirt (without shipping ) = $2.80

Shipping cost per t-shirt ; 5% of a T-shirt = 0.05 *2.80 = $0.14

Total cost of T-shirt (shipping included) = 2.80 +0.14 = $2.94

Markup = 150% of total cost = 1.50 * 2.94 = $4.41

To get the price at which Michelle will sell each T-shirt , add total cost  to the markup; 2.94 +4.41 = 7.35.

Therefore, selling price will be $7.35