Answer:
4 weeks
Step-by-step explanation:
15 + 2x = 23
2x = 8
x = 4
Answer:
is equivalent to
and 
is equivalent to
and
.
The expressions which are equivalent to neither:
and 
Step-by-step explanation:
Given the expressions:
1) 
2) 
To find:
The expressions equivalent to the given expressions.
or the expressions which are not equivalent to any of the given expressions.
Solution:
First of all, let us solve the brackets from the given expressions.
can be written as
(because when we multiply a negative sign with negative, it becomes positive.)
Similarly
can be written as
(because when we multiply a positive sign with negative, it becomes negative.)
Therefore, the answer is:
is equivalent to
and 
is equivalent to
and
.
The expressions which are equivalent to neither:
and 
Answer:
Three 60 degree angles would equal 180 degrees
Step-by-step explanation: