It's a linear function. We need only two points to the plotting of the graph.

Answer: The required equation is
and the number of fishes in the pond on June 1 = 115
Step-by-step explanation:
Given: The number of fishes in pond on July 1 = 63
Also, it is said that the number of fishes in pond on July 1 is 52 fewer(lesser) than the number of fishes in pond on June 1.
Let f be the number of fishes in pounds on June 1.
then the required equation will be

Now, add 52 on both the sides of the equation, we get

A work applied on the cart = 20.8x0.636