1) Problem 2.1 from the book

a. 6 - int
b. 20.0 - float, even though it could be represented as an int, since 2.5 is a float the result is a float
c. 4 - int, we round down when doing integer arithmetic
d. -5 - int, again, round down
e. 1 - int

# don't worry too much about f and g, since I don't expect you to know these, but I thought I'd leave them in for those that are curious
f. -1 - int, when using mod, the values will always rang from 0 to one minus the number you are moding by
g. 1 - int

h. -4.5 - float
i. 19 - int, * has higher precedence than +
j. 35 - int, () has higher precedence than *

2)

x will be 20
y will be 15
z will be 20