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.
I dont even get the question
The answer is,
= 22.5 × 2
= 90 in. squared
Step-by-step explanation:
V = 1/3 pi r^2 h
root(V ÷ 1/3 pi) = h