Answer:
2
Step-by-step explanation:
Using the rule of radicals
×
⇔
, then

= 
=
× 
= 2
Answer:
BC is just 3d+7??
Step-by-step explanation:
The answer is D. -15 because I am assuming that the vertical lines mean brackets, and we have to work out the brackets first (according to BIDMAS). Doing so, -6 + 2 = -4 and -4 + -11 = -15.
Answer:
7 - n
Step-by-step explanation: