It is systematic because they are going every tenth person, in a random manner.
Answer:

Step-by-step explanation:
7x + 24x = 25 x
31 x = 25 x
Subtracting 25x to both sides
31x - 25x = 0
6x = 0
Dividing both sides by 6
=> x = 0
You just need to solve for x in the equation:
–0.01x^2 + 0.32x + 4 = <span>–0.01x^2 + 0.18x + 5
0.18x=1
x= 5.55
h(5.55) = -0.01*30.86+0.18*5.55+5 = -0.3086+1+5=5.6914
The intersection point is (5.55, 5.69).
I hope that this is the answer that you were looking for and it has helped you.
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Part A
From the two buildings she rents, the building costing $643, 225 price is greater than the other that costs <span>$635, 895
Part B
Round to the nearest ten thousand:
</span><span>$635, 895 ~ $640, 000
this is because 5,895 rounds to 6,000, and then this rounds to 10,000
</span><span>$643, 225 ~ $640, 000
</span>this is because <span>43, 225 rounds to 40,000 the nearest ten thousand</span>
This is for the answer to X