Répondre :
Bonjour;
a)
105+ 118 +220 +89 +102 +135+131
=> 900 visiteurs
b)
900-> 180°
Lundi
( 105/900) *180
=> 21°
Mardi
(118/900)*180
=> 23, 6° -> 24°
Mercredi
(220/900)*180
=> 44°
Jeudi
( 89/900)*180
=> 17,8° -> 18°
vendredi
(102/900)*180
=> 20,4° -> 20°
samedi
(135/900)*180
=> 27°
dimanche
( 131/900)*180
=> 26,2° -> 26°