First simplify the square roots:

Then simplify the last two terms:

Since 61 is prime, you can't take a rational root out of it.
Answer:
36
Step-by-step explanation:
3*2=6
6^2 is 36
65%...
26 divided by 40 = 0.65 x 100 = 65%
hope this helps!
Answer:
n = 6
Step-by-step explanation:
Using the sine ratio in the right triangle and the exact value
sin30° =
, then
sin30° =
=
=
( cross- multiply )
2n = 12
( divide both sides by 2 )
n = 6