Respuesta :

Answer:

D

Step-by-step explanation:

42 minus 31 is 11

so 11/42 = /100

Answer:

11/42 = x/100

Step-by-step explanation:

42 students and 31 are girls

42 -31 = 11 that is the number of boys

boys / total = x/100 to find the percent

11/42 = x/100