Respuesta :

Answer:

40%

Step-by-step explanation:

[tex]\frac{42}{105} \frac{x}{100} \\[/tex]

cross multiply to get

4200 = 105x

divide both sides by 105 and get x = 40

Answer:

c-40%

Step-by-step explanation:

42/105=.4 which is 40%