Step-by-step explanation:
a.) the given term can be written as
=

=

=

hence the given term is

where b = 3
b.)
=

=

=

=

hence the given term is 12
Answer:
Multiply by 4
Step-by-step explanation:
The next number would be -320
Answer:
x = 7
Step-by-step explanation:
2x + 11 = 25
subtract 11
2x = 14
divide by two
x = 7
12 is first one 7 is 2nd one 9 is the last one
Hey there!
This seems like a
algebraic expression
SO,
Remember: negative and negative =
positive positive and positive =
positive positive and negative =
negative negative and positive =
negative
In
this problem we will be doing
negative and negative so that means our answer will be
a negative
Firstly, lets line up our decimals to solve this problem (once when you do that , you can solve it easier)

Answer: 
Good luck on your assignment and enjoy your day
~