Astoreowner wants to set up a rectangular ‘sale zone’ to display sale items on the pavement outside of his store. he will use one side of the building (which is 45 feet long) as part of one side of the display area. he will use 200 linear feet of fencing material to fence in the remainder of the display area. let x represent the length of the side of the rectangular sale zone which is opposite the building. write a function that expresses the total area a of the sale zone in terms of x .

x = 3 ± √(5+y)

answer: b

step-by-step explanation:

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third choice down

step-by-step explanation:

the first inequality is based on the number of adults and campers, and the second inequality is based on the cost of feeding both the adult and the camper.

we know that there is room for 525 people max.   it's ok to have less than 525, but it's not ok to have more than 525, so the inequality is less than or equal to.   the number combination of adults (x) and campers (y) cannot exceed this 525 max.   therefore:

x + y ≤ 525

now we talk about cost.   it costs $9 to feed one adult, so depending upon the number of adults you have (x) depends upon how much it will cost to feed that number of adults.   same with the campers, who cost $5 to feed.   the adults can be represented by 9x and the campers can be represented by 5y.   since the budget cannot exceed 1,200, the second inequality is:

9x + 5y ≤ 1200