Help understanding to solve these problems

Problem 1:

__1 __x + __1__ < __1__ x + __2__

6......2...12......3

Problem 2: The colored, **bold** numbers are exponents.

2 x**2** (3 xy) (-3x**2**y**2**)

Problem 3: The colored, **bold** numbers are exponents. Double-parentheses denotes a much larger parentheses.

(-16 s**2**t**3**) ((__3__ t**5**))

..................8

Problem 4: The colored, **bold** numbers are exponents.

__3 c__**5** d**3**

6 c**3** d**5**

Problem 5: The colored, **bold** numbers are exponents. Double-parentheses denotes a much larger parenthesis.

((__ 3 a__**2** b c**-1** ))**-2**

...9 a**-1** b**-1** c

I appreciate any guidance in advance on how to work these out. :confused: