Answer:
7
Step-by-step explanation:
the reciprocal of 
To find reciprocal, flip the top and the bottom.
So
would be
.
Multiply like normal.
Answer:

Step-by-step explanation:
Given
← factor both numerator and denominator
=
← cancel common factor (1 - 2b) on numerator/denominator
=
← cancel 6 and 3 by 3
= 
Answer:
=10
Step-by-step explanation:
1: Add the numbers
2: Factor the numbers
3: Apply radical rule
Answer: =10
<u><em>Hope this helps.</em></u>
Answer:
Smh why justin bieber tho.
Step-by-step explanation: