Answer:
Step-by-step explanation:
A = [(3x2)/2] + [(4x2)/2] - 1/2
A = 3 + 4 - 1/2
A = 6.5
Answer: Last option
The number -8.4 is a solution to the inequality because -8.4 is located to the left of
on the number line.
Step-by-step explanation:
Note that: 
The inequality is:

The inequality is:
This means that the inequality includes all values of the number line that are less than -3.25 or that are to the left of -3.25
__-8.4_________-3.25_-3____0___0.9____________7.1__
Note that the number -8.4 is less than -3.25, because it is to its left on the number line.
Then the correct statement is:
The number -8.4 is a solution to the inequality because -8.4 is located to the left of
on the number line.
Assuming There is ONLY ONE CORRECT ANSWER,
The probability of her guessing the answer without ruling out the choices is 1/5.
if 3 choices are ruled out, then 1 out of the remaining two is right, which gives the probability 1/2
now, 1/5 = 20% , while 1/2 = 50%.
Therefore her probability of getting the correct answer improves by 30% [ not much in a REAL test though :P ]
The answer to this question is A. : )