Micheal has 2 liters of a 10% solution. How much of a 17% solution would he need to add to get a 15% solution?

There is a line with slope 1/a going through the point (a, a²). find the equation of the line perpendicular to this line at this point. (don’t let this problem intimidate you! solve the problem as you would if i’d given you specific values. just use variables instead.)

Volume of cylinder with a radius of 8cm and height of 25 cm

Apatient is to be given 35 milligrams of demerol every 4 hours. you have demerol 50 milligrams/milliliter in stock. how many milliliters should be given per dose?