Answer:
0.5759
Step-by-step explanation:
a. X=6°
b. 6(6)-8= 28°
c. 28+( 5(6)-2) = 56°
480
8x4=32
8x8=64
32x4=128
32x8=256
256+128+64+32=480
medium
The right answer is Medium, because to travel through the ear the sound wave must go through the ear drum.