If by markup you mean discount then.....
1.5*0.07 = $0.105
That must be a very good pen ;D
Answer:
7*(1/10)= the third one
Step-by-step explanation:
By using y=mx+b you get y=-3/8x-17/8
U do the radios first then what ever your anwser is u multipy it by 3.14
