Answer:
25%
Step-by-step explanation:
Total= 40 students
boys +girls= 40
30 +girls= 40
number of girls
= 40 -30
= 10
Percentage of girls

Alternatively,
percentage of girls
= 100% -(percentage of boys)

There are eight books total and he only grabbed two so the probability would be 2 out of 16 or 2:16
1-10 is the answer to the question
Answer:
The right angle's vertex.
Step-by-step explanation:
A right angle is 90 degrees. The vertex is at the middle of the angle, so that point is used to draw a segment in the middle of the right angle.