Xavier (x) has $20 more than Sara (s). Their combined money totals $90. Which system of equations represents this situation? a)
x + s = 90 s + x = 20
b)
x + s = 90 x - s = 20
c)
x - s = 90 s + s = 20
d)
s - x = 90 x - s = 20

B) x + s = 90, x - s = 20

Step-by-step explanation:

x + s = 90 represents that both Xavier and Sara's money combined is $90.

x - s = 20 represents that Xavier has 20 more dollars than Sara.

c

step-by-step explanation:

there is vertical asymptote at x = 2 and x = 0

vertical asymptote occurs at the points where the denominator is 0. so we can say that

x = 2 occurs when there is a factor (x-2) in the denominator, and

x = 0 occurs when there is a factor "x" in the denominator

thus, the denominator of the equation would have "x * (x-2)", this is option c only. that's the correct answer.