Please help fast make sure you look at the picture first before you answer I’ll give you brainless and lots of points VERY IMPORTANT

Answer:
sin(b) = 0.8
Step-by-step explanation:
The sine is equal to the length of the side opposite the angle, divided by the length of the hypotenuse.
In this case, the side in question has a given length of 8, and the hypotenuse 10, so the sine of B is equal to 8 / 10, or 0.8