Answer:
Step-by-step explanation:
Add the total number of students:
Boys: 8, + Girls: 12 = 20 students
of the students are girls
6/10 also equates to 60%, which is the percent of girls in the class.
B plz mrk brainliest
The answer is C: systematic sampling
x = 9/2 or 4 1/2 or 4.5
Divide both sides by the numeric factor on the left side, then solve. Hope this helped :)!
a=-3
b=-9
