Answer:
27 females are in the class
Step-by-step explanation:
Spilt 30 into 10 (30 divided by 10) and then you get 3. The number of males in the class is 3. Now subtract 30 from 3 and you get 27. Therefore, there are 27 females in the class.
Answer:
the 3rd one
Step-by-step explanation:
Answer: 4
Step-by-step explanation:
The percent of brand a is 22
Answer:
(0.5, 5.5)
Step-by-step explanation: