Kelsey Construction has purchased a crane that comes with a 5-year warranty. Repair costs are expected to average $5000 per year beginning in Year 6 when the warranty expires. Determine the present worth of the crane's repair costs over its 15-year life. The interest rate is 10%.

This answer is that it is true

The buyers because if they don't like it, it won't be made anymore

Ithink the answer is 40%

Combining the emissions released by fossil fuel burning and  the carbon released via land use change, we get a total of 8.7 gt. since the problem states that the oceans "take up" or sequester  2.4 gt carbon  per year, we subtract that value from 8.7 gt, leaving us with 6.3 gt of carbon. since the problem states that 3.4 gt carbon dioxide emissions end up in the atmosphere, the "missing sink" of carbon takes up 2.9 gt, a value we got by subtracting the 3.4 gt amount recorded from the 6.3 gt carbon left available after the oceans sequester the carbon dioxide.