Answer:
we need the table!
Step-by-step explanation:
So the first one is -0.5 and second is -0.5 the third one is -0.5 and the fourth is -0.25 so I would say that is D
Answer:
Step-by-step explanation:
it is 25 
A.
We can rewrite the squared in two ways.
The first way is to rewrite it as a multiplication, this is:

The second way to rewrite the squared is by using the formula for this kind of product:

B.
Once again we can find the final result using each of the options given in part A, for the first option we have:

For the second option we have:

No matter which way we choose the answer for the squared is:
Answer:
<h2><u>
r = -0.4</u></h2>
Step-by-step explanation: 57.7r + 23.23 = 2.57 57.7/57.7 = -20.66/57.7
- 23.23 - 23.23
57.7r = -20.66