Model $3$ Integers and Floats

Question:

$1.$ List the function calls that convert a value to a new data type.

$2.$ How does the behavior of the operators $(+$ and $*)$ depend on the data type?

$3.$ What is the difference between the int function and the round function?

$4.$ What is the value of $3+3+3?$ What is the value of $\mathrm{.}3+\mathrm{.}3+\mathrm{.}3?$ If you enter these expressions into a Python Shell, what do you notice about the results? $3+3+3$ is $9$ and the $\mathrm{.}3+\mathrm{.}3+\mathrm{.}3$ is $0\mathrm{.}89999.$

$5.$ In order to store a number with $100\%$ accuracy, what data type is required? How might you precisely represent a bank account balance of $$123\mathrm{.}45?$