SAT Question 99550621: Ratios Rates Proportional Relationships And Units answer and explanation with Desmos solution

Choice B is correct. It's given that the event will be in a $5,400$-square-foot room and that there should be at least $8$ square feet per person. The maximum number of people that could attend the event can be found by dividing the total square feet in the room by the minimum number of square feet needed per person, which gives $\frac{5,400}{8}=675$.