Bonjour pouvez vous m'aider a cette ex svp merci d'avance 4e

Bonjour,

A = 9 * n

A= 9n

B = x * 3

B = 3x

C = 12 * (7 - 3)

C = 12 (7 - 3)

D = 4 * (3,2 + 6)

D = 4 (3,2 + 6)

E = n * x

E = nx

F = 2 * π * R

F = 2πR

G = (3 + 6) * (7 - 1)

G = (3 + 6) (7 + 1)

H = 16 * 3,5

bonjour

A = 9 n

B = 3 x

C = 12 * 4 = 48

D = 4 * 9.2 = 36.8

E = nx

F = 2 pi R

G = 9 * 8 = 72

H = 56