Answer: Have a nice day!
Step-by-step explanation:
The Answer is $9.00 because if you just add 4.50 to 4.50 it is $9:00.
It's scientific notation, so 1.4x10^7 would be 14000000 <span />
Answer:
Antoinette's error
Option A) She distributed incorrectly.
Step-by-step explanation:
We are given the following information in the question:
Antoinette solves the linear equation

Antoinette made mistake in step 1 that is she did not distributed correctly.
If she would have distributed correctly, then she would have got the following solution:

Substituting x = -1 in the given equation, we gwt:

Antoinette's error
Option A) She distributed incorrectly.