I would go about solving this by elimination because the x variables are already the same so all you would have to do is change one equation to the opposite signs and add them, so it would look like:
7y + 5x = 19
+ -3y - 5x = -7
-------------------
4y=12
y=3
The nearest tenth is
129.6
It is given that one third of restaurant is given away and the value that remains is $15000.
If one third is gone that means two thirds of the restaurant is valued at $15000.
Let the value of the restaurant be x.

So the original value of the restaurant was $22,500.
Option A is correct.
The expression f(0) represents the y-intercepts on the graph of f(x). The y-intercepts of a graph is the point where the graph crosses the y-axis.
That would be 1.05 in decimal form and in fraction form that would be 21/20