1 Which gives us an answer of 0.010869565cm3.  The final step is to convert your volume into ml. As 1cm3 = 1ml it's a 1:1 conversion. So, we don't need to do anything and therefore have our answer. 10mg of sunflower oil is 0.010869565 ml.
No. When a child reaches age 8 (regardless of weight) OR reaches 80 pounds (regardless of age), a properly fitted seat belt may be used instead of a child restraint/booster to restrain the child. However, keep in mind that the seatbelt may not fit properly even if the child is 8 years old or weighs 80 pounds. The law does require that children stay in a child restraint or booster seat until the seat belt fits properly on its own.
If a booster seat has a minimum weight limit of 40 pounds, you can't legally put a 30-pound child in it if your state has a proper use clause. If an infant car seat has a maximum height of 30 inches, it would not count as a legally appropriate car seat for a 34-inch long baby.