super important a rendre demain ! aide svp

Bonsoir

Paul = x
Frank = 3x
jean = 2x

x +3x +2x = 114
6x = 114
x = 19
Paul = 19, Frank = 57 et jean = 38

B = 10 ³ x 10⁷ sur 10¹⁵
B = 10 ¹° sur 10¹⁵
B = 10 ⁻⁵

C = 10¹° x 10⁻⁴ sur10 ⁷
C = 10 ⁶ sur  10 ⁷ = 10 ⁻¹

d = 10⁸ x 10 ⁵ sur 10²
d = 10¹³ sur 10² = 10 ¹¹