What is the solution to x/2+y=-15/2 and -x+4y=-33

Drag each scenario to show whether the final result will be greater than the original value, less than the original value, or the same as the original value. 1. a 25% decrease followed by a 50% increase 2. a 20% decrease followed by a 25% increase

100 points, hi, i’m not sure how to get the equation from the graph and table.

How much dextrose 70% must be mixed with dextrose 5% to prepare 1,000 ml of dextrose 20%?