For every 1 litre of water used to make a medicine, 311ml of sucrose and 271ml of saline solution are used. Express the amount of water, sucrose and saline solution needed as a ratio in its simplest form.

Why do interests rates on loans to be lower in a weak economy than in a strong one

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.

`if you have a set of parallel lines a and b cut by transversal x, if angle 1 = 167 degrees, what is angle 4 and why. also what is the measure of angle 5 and why? you need to use the names of the angle relationship and explain. ''.