Is this the proper description of the statement...(it's a d-t graph)

The slope of the graph at point A is 30.
Ans: The instantaneous velocity of the object at point A is 30.

Or is it supposed to be instantaneous acceleration.

Velocity I think if it is a distance vs. Time graph, If it was a Velocity vs. Time graph then Acceleration.

To determine whether the statement is describing the slope as the instantaneous velocity or instantaneous acceleration, you need to understand what a d-t graph represents.

A d-t graph, also known as a position-time graph, represents the relationship between an object's position (displacement) and time. The slope of a d-t graph represents the rate of change of position, which is equal to the object's velocity.

Given the statement, "The slope of the graph at point A is 30," we can determine that it is referring to the object's instantaneous velocity at point A. Instantaneous velocity represents the velocity of an object at a specific moment in time.

Therefore, the correct interpretation of the statement is: "The instantaneous velocity of the object at point A is 30."