**Problem 1**: Assume the following assignment statements have been executed.

x = 9

y = 2

z = 5

What will the following expressions (involving *arithmetic* operators) evaluate to?

(You should check your answers by evaluating these expressions on your computer)

x + y * z

x // y

x / y

x ** y – z

What will the following expressions (involving *comparison *operators) evaluate to?

(You should check your answers by evaluating these expressions on your computer)

x == y

x != z

y < x

y > z

x >= 9

z <= 9

**Problem 2**: Write an expression that calculates the number of seconds in 77.3 years (the average lifespan of a person living in the U.S. in 2020).

**Problem 3**: Write an expression using comparison operators to check whether the following statement is true: there are fewer seconds in 3 years than there are hours in 100,000 years (assuming there are 365 days in a year).