Pure acid is to be added to a 10% acid solution to obtain 21 L of a 40% acid solution.

Select the quadratic that has root x = 8 and x = -5

Arectangular lawn is 65 m long and 34 m wide. over time, people have walked along a diagonal as a shortcut and have created a straight path. what is the length of the path, to the nearest tenth of a meter? enter your answer as a deicmal in the box. m

Me because i don't understand how to do it.: )