15 Chapter 3, Laplace transform. Section 3.2.1 Initial value problems. Exercises page 156

 15.1 problem 6(a)
 15.2 problem 6(b)
 15.3 problem 6(c)
 15.4 problem 6(d)
 15.5 problem 6(e)
 15.6 problem 6(f)
 15.7 problem 6(g)
 15.8 problem 6(h)
 15.9 problem 6(i)
 15.10 problem 6(j)
 15.11 problem 11
 15.12 problem 12
 15.13 problem 14
 15.14 problem 15