Answer:
3
Step-by-step explanation:
When multiplying two powers that have the same base, you can add the exponents.
19 feet
convert 2 
into an improper fraction
2 = 
hence the length of the wall is 19 feet
Answer:
A
Step-by-step explanation:
A graph that represents a proportional relationship usually has the line cutting through the line of origin (0, 0).
The graph in option A does not have the line passing through the point of origin (0, 0), therefore, it does not represent a proportional relationship.
For an equation that represents a proportional relationship, it is written in the form of y = kx
Where, k is the constant of proportionality.
Therefore, the two equations given represents a proportional relationship.
