Answer:
your answer is for sure D but I think C is also the answer
Step-by-step explanation:
Additive relationship are two quantities can be expressed as related to each other through addition. It can be written as y = x + a, where y is related to x through the addition of a constant, a. The value for a may be positive or negative.
The answer is 3 square units
Set up a proportion.
x = length of actual wall
1/30=7/x
Cross multiply: x = 210 inches