one of each metals
step-by-step explanation:
it's equivalent, so we can say that its equal.
let's call the denominator x and the numerador is 18 less then denominator, x - 18.
multiply
2.x = 5.(x - 18)
2x = 5x - 90
90 = 5x - 2x
90 = 3x
x = 90/3
x = 30
so:
image for option 4
i just know the internet
x-intercept:
(
−
1
+
√
7
,
0
)
y-intercept:
6