Compute the answer of the following problems

Problem 1- The coolant in a typical car heats up to around 190 °F during normal operation. What is this change in coolant temperature if its initial temperature was 65 °F prior to warming up in units of: Kelvin, Celsius and Rankines?

Problem 2- Is an automotive coolant system an open system, closed system, or isolated system? Explain your selection.

Problem 3- Give an example for each of the other two types of systems (for example, if you selected "open system" for problem 2, give examples of isolated and closed systems).

Additional credit (2pts): Normal Hershey Kisses are made from a mold and if you weigh a bunch of them, you will see that they weigh within about +/- 0.03 grams of each other. Hershey Kisses with Almonds, however, are a much different story. Their weight will vary over a range of +/- 0.2 grams. How can you explain this?

I need help to explain the answer of the above problems.