Not many steps can be included
Since 42 is in parenthesis you multiply it by 7
Giving you
294
The correct next step Amy could take is to factor (x^2 - 16) on the left side of the equation to yield (x + 4)(x – 4)(x + 2) = 0.
The equation is given as:

The possible next steps are:
1. Expand the equation as follows

2. Express x^2 -16 as a difference of two squares as follows

However, the correct step in this case is to factor x^2 - 16 as a difference of two squares to give 
This is so, because the question says Amy is trying to solve for variable x.
This step will ensure that she gets the possible values of x, unlike expanding the whole equation .
Hence, the correct next step is 
Read more about equations at:
brainly.com/question/7674413
The museum is six block east and six block south in the relation to hotel.
Good luck!!!
There are 676,000 possible PIN codes.
There are 26 letters in the English alphabet, and 10 digits.
26 * 26 * 10 * 10 * 10
676 * 10 * 10 * 10
6760 * 10 * 10
67600 * 10
676000