It is important to position a patient correctly, avoiding a…

It is important to position a patient correctly, avoiding a pillow or cushion under the knee of a patient who is s/p transtibial amputation to avoid which of the following conditions result in the shortening of the muscle, fascia, and joint capsule that prevents normal flexibility or movement?  

An investment promises a return of 15%.  It will require tha…

An investment promises a return of 15%.  It will require that you will make  payments of ${c1} in two, three and four years.  Then you will have to make payments of ${c2} in 7, 8 and 9 years. No other payments are required.  How much will you have in {N} years?