Express the following linear equation in the form $ax + by + c = 0$ and indicate the values of $a, b$ and $c$ in each case:
$3x = 2y + 1.\overline{5}$

The point of the form $(a, a)$ always lies on:

If $(4, 3)$ is a solution of the equation $3x - 4y = k$,then find the value of $k$.

Express the equation $2x + 3y = 12$ in the standard form $ax + by + c = 0$ and find the value of $a + b + c$.

The graph of the equation $x+y=11$ passes through the first quadrant and .............

The autorickshaw fare in a city is as follows: For the first kilometre,the fare is ₹ $10$,and for the subsequent distance,it is ₹ $3$ per $km$. Taking the distance covered as $x$ $km$ and the total fare as ₹ $y$,write a linear equation for this information and draw its graph. Find the total fare for a journey of $4$ kilometres from the graph.