An asset was purchased for $80,000 on January 1, Year 1, and originally estimated to have a useful life of 10 years with a residual value of $10,000. At the beginning of the third year, it was determined that the asset would be sold. Calculate the net book value at the end of year three using the straight-line method.

check the picture below.

well, the angle at the vertex d is clearly not a right-angle, let's check for the one at the vertex f which does look like,   however if it's indeed, that means ef is perpendicular to df, in which case their slopes will be negative reciprocal of each other.

so the negative reciprocal of the slope of ef is 1, however the slope of df is not 1, is 1/2, so nope, they're not perpendicular lines.

the k side

step-by-step explanation:

plese mark mde brainliest!

step-by-step explanation:

well if you round, things become much more simple. round 5.95 to 6, 4.25 to 4, and 1.05 to 1. now, add 6+4+1 and that would equal 11. so the items together would equal to about $11.

the answer would be  

a.

3: 1

step-by-step explanation: