Compiler optimizations for math

Using Arduino Programming Questions
1

Will the compiler optimize

x = y + (100*3/5) into x = y + 60; or will it execute the 10 * 3 / 5 for each computation?

2

I found this"presidence table.

It says the operation will be left to right in the parentheses. And it will be done once by the compiler.

Paul

3

Hopefully the compiler was programmed to follow the order of precedence.

Thanks for the answer. I could not google anything conclusive. I like to include the full formula in the equations in the program to remind of how it works. But if was going to cost memory or cycles then I would just do the math myself. I do understand the compiler can only optimize that portion (portions) independent of the variable.

4