How do I show the work.

I'm not sure what you mean as each different type of problem should be approached differently, but typically teachers just want you to write out the entire problem after each step. They also don't want you to do more than one major step in between writing out the equations.

example:

45

step-by-step explanation:

step-by-step explanation:

one of the most important purposes of surface treatment is to alter surface properties according to the requirement of specific applications. for example, hydrophobic coating has been utilized on windshield and eyeglasses. gold atom monolayer on substrate has become a popular surface bioconjugation strategy.