Page 58 :
exo 18 (2pts) , 20 (1pt).

Page 70-72
exo 34-36 (1pt by letter, thus 6pts)
exo 38 (2pt), exo 42 (2pt for picture, 1 pt for "e^x is obtained by
stretching 10^x horizontally(by a factor ln(10))" and/or "ln is obtained
by stretching \log_{10} vertically ...", 2 pt for any "(...) is obtained
by reflecting about the line y=x (...)"; total 5pts).
Exo 48 : 4pts (2+2)

Page 97-99
Exo 2 (1pt), 4 (5 times 0.4 pt; total 2pts), 6 (10 times 0.4 pt for
(a-(j), 2 times 0.5 for (k)-(l); total 5pts), 14 (2pts) 

Total 30pts.