Answer:
The correct answer is "
".
Step-by-step explanation:
According to the question,
Number of students,
= 35
A ! mid term A,

B : final A,

Didn't start,

Now,
⇒ 

then,
⇒ 

hence,
The probability will be:
⇒ 
⇒
Answer:
20%
Step-by-step explanation:
4/20 = x/100
100*4 =400
400/20 = 20
so
4/20 = 20/100
Answer:
12
Step-by-step explanation:
What...................................numberxs
Answer:
a. Andrea is incorrect
b. By solving for x, we find that x does not equal 8, but it is equal to 7.
Step-by-step explanation:
8+4=2(x-1)
8+4=2x-2
12=2x-2
14=2x
x=7