Please help me to answer these two questions.

These are calculus problems involving the anti-derivative.

1. The first problem should have a fraction as the answer.
2. The second problem should have a number rounded to three decimal places.
   

\fThe U.S. national debt stood at $10.025 trillion in 2008 (t = 0) and was growing at the rate of R(t) = 0.070251t2 0.51548t + 2.1667 (0 s t s 4) trillion dollars/year in year t between 2008 and 2012. What was the U.5. national debt in 2012?? (Round your answer to three decimal places.) $ X trillion