If the point $(3,4)$ lies on the graph of $3y = ax + 7$,then find the value of $a$.

The graph of $x+y=0$ passes through the origin and which quadrants?

In a Cartesian plane,the graph of the equation $y=5$ is parallel to the ........ axis.

The $y$-form of the equation $3x - 4y = 24$ is:

The total cost of a school picnic consists of two parts: a fixed bus fare of ₹ $200$ and the cost of snacks at the rate of ₹ $30$ per student. Representing the total number of students by $x$ and the total cost by $y$,form a linear equation in two variables. If the number of students going on the picnic is $40$,find the total cost.

If the point $(3, 4)$ lies on the graph of the equation $3y = ax + 7$,find the value of $a$.