x = 8
y = 3
z = 2.0
a = "Duke"
b="CoolColors"
print x/y*z
4.0


print a*y
DukeDukeDuke


print y*a
DukeDukeDuke


print b-"o"
Traceback (most recent call last):
  File "C:\Users\Susan\AppData\Local\Enthought\Canopy\App\appdata\canopy-2.1.3.3542.win-x86_64\lib\site-packages\IPython\core\interactiveshell.py", line 2885, in run_code
    exec(code_obj, self.user_global_ns, self.user_ns)
  File "<ipython-input-11-645f28a4d072>", line 1, in <module>
    print b-"o"
TypeError: unsupported operand type(s) for -: 'str' and 'str'

a = 5
b = 4
print b
4

a = a+b
print a
9

c = "fred"
print c
fred


print type(c)
<type 'str'>


print type(a)
<type 'int'>


print a + c
Traceback (most recent call last):
  File "C:\Users\Susan\AppData\Local\Enthought\Canopy\App\appdata\canopy-2.1.3.3542.win-x86_64\lib\site-packages\IPython\core\interactiveshell.py", line 2885, in run_code
    exec(code_obj, self.user_global_ns, self.user_ns)
  File "<ipython-input-21-bf5dc6cd00d8>", line 1, in <module>
    print a + c
TypeError: unsupported operand type(s) for +: 'int' and 'str'

print a*c
fredfredfredfredfredfredfredfredfred


print a + b * 3
21


print (a+b)*3
39


print a/b
2


print a/(b*1.0)
2.25