Answer:
<u>Part A</u>:
(
is equal to all real numbers)
<u>Part B</u>:

Step-by-step explanation:
<u>Part A</u>:
Given
, combine like terms:

Add 7 to both sides:

Since this is merely a true statement for all real numbers (reflexive property), this equation is true for any real value of
.
Therefore,
(
is equal to all real numbers).
<u>Part B</u>:
Using arbitrary values
as requested in part B, verify:

Answer is c. $62.99
Step by step
89.99 x 70% = x
89.99 x .70 = 62.99
Hint: If the dress was 30% off, it’s cost is 70%
You can also do this in two steps
89.99 x 30% = discount of $27.
Then
89.99 - $27 = $62.99
I believe it's
C. 314.16mi^2
If it's wrong just let me know and I'll help you the best I can enjoy and have a great day!
Answer:
-9
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
Apex