Answer:The dependency ratio is an age-population ratio of those typically not in the labor force and those typically in the labor force. It is used to measure the pressure on the productive population
Step-by-step explanation:
The amount of sugar 
in the starting solution contributes to a 36% concentration, so we have
units of sugar in the solution.
Into this solution, Sharon wants to pour 
liters of water to obtain a smaller concentration of sugar in the overall solution:
So Sharon needs to add 
liters of water to the solution to get the desired concentration.
Answer:
Step-by-step explanation:
Answer:
(-2 x5y3 )( 3x2y )= -180 x2 y2
