A hospital laboratory needs a 15% hydrogen chloride solution. However, only 10% and 18% HCI solutions are in stock. How much of the 18% solution should be mixed with 100 fl oz of the 10% solution to get a 15% solution

On traditional maps, earth is represented in a flat plane, or by euclidean geometry. however, a globe is a more accurate model that comes from elliptical geometry.how does a globe represent the fact that there are no parallel lines in elliptical geometry? the equator is not parallel to any other latitudinal lines. the north and south poles are never connected by a geodesic. the geodesics connecting the north and south poles never intersect. the geodesics connecting the north and south poles intersect at both of the poles.