C because do you not want your child participating age-apprioate activities if you think it is annoying you can leave that area
13.02 Multiply 12 by 0.085, which is 8.5% in decimal form. You get 1.02. Add that to your original price, 12, and you get $13.02
D iaitu (beza sepunya)=T2(sebutan kedua)-T1(sebutan pertama)
