Answer: B
Step-by-step explanation:

Substituting into y=3x+b,

John has $5,000 in his savings. That’s the total.
He has to give his sister $50 for her birthday.
He also spends $450 for his car payment.
We can easily put this into an equation.
50x-450=5000
Now we have to solve it.
50x-450=5000
-450 -450
50x=5000-450
50x=4550
50x/50=4550/50
x=91
So it will take 91 months to spend his $5,000.
12.................................................
Answer:
are u ok
Step-by-step explanation:
Two Right Angled Isosceles triangles -
two sides are same
and one angle 90 degree is same that is why they are always similar.
While Two right Angled Scalene triangles -
Only one angle 90 degree is same.
No side is same.
That is why they are not similar.
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