SAT Question 1b96c116: Ratios Rates Proportional Relationships And Units answer and explanation with Desmos solution

Choice A is correct. It’s given that $1$ foot = $12$ inches . It follows that $1^2\text{square foot}=12^2\text{square inches}$, or $1$ square foot = $144$ square inches . Thus, $3,168$ square inches is equivalent to $(3,168\text{square inches})\left(\frac{1\text{square foot}}{144\text{square inches}}\right)$, or $22$ square feet.