Knowledge of the functionality of farming equipment is essential for a
farmer due to which of the following?
A. They need to know what is a fair price for equipment.
B. Sales for equipment occur only during certain seasons.
C. Repairs are usually costly.

All of the following items are important to know when diagnosing an engine driveability problem except for thea. type of gasoline usedb. brand of engine oil usedc. temperature of the engine when the problem occursd. list of previous repairs

Aqué renunció la iglesia para ayudar a los demás con los testigos de la iniciación de la iglesia primeros mártires de la iglesia

Raul has one solution that is 20% acid by volume and one solution that is 50% acid by volume. he plans to mix together some of each solution to create 30 milliliters of a solution that is 40% acid by volume. how many milliliters of the 20% acid solution should raul use to create the 40% acid solution? can someone explain this to me? i know that the answer is 10 milliliters, but i don't know how to get it.