WeBWorK Standalone Renderer

Evaluate the following:

$\displaystyle \int_{-1}^6 (6+e^{-2t})\, \delta(t-2) \ dt =$
$\displaystyle \int_{-1}^6 (6+e^{-2t})\, \delta(t-10) \ dt =$
$\displaystyle \int_{-1}^6 (6+e^{-2t})\, \delta(t) \ dt =$

You can earn partial credit on this problem.