What is the change in internal energy of thermodynamic system in which 20 BTU of heat is added and 35 BTU of work is done on the system?

There is no graph to look at on here, but i shall explain them to you. a line graph is just in its title it’s a graph with a line running through the dots to show an increase or decrease. a bar graph is used to show how much or how little something is so a comparison. a scatter plot is used to graph points to tell the data. and i don’t know what a histogram is.

This question is incomplete and not physics but i'm  willing to if you can give a better question

The first one auditory. hope i . *)

What happens is they connect and there