Answer:
64.8
Step-by-step explanation:
I think the answer to your question is 11.11 I hope this helps
First add the prices of the original books.
2.5+4.95+6=11.45
Find 20% of 11.45
=2.29
Therefore I saved $2.29
La of sine:
sinC/c = sinB/b==> sin 37°/8 = sin B/12 ==> sin B = 0.903
arcsinB or sin⁻¹ B = 64.5°, & sin (B°) = sin (180° - B°), then
sin(64.5) = sin(180°-64.5°) ==> B = 64.5° or 115.5°
Solution:
we have been asked to find
The expression is equivalent to 
we can simplify the given expression as below
Hence the simplified expression , equaivalent to the given expression is 1/2.
