Answer:
to find the number of boys 100%-40%=60%
the 60% is the boys percentage
now we will convert the percent to decimal
40% =.40
60% =.60
now we will multiply it by 30 (30) is the number of all students in class
30×.40=12
30×.60=18
Step-by-step explanation:
12girls
18boys
the correct answer is B.18
hope it helps
