Given the following graph of the function $y=f(x)$ and $n=6,$ answer the following questions about the area under the curve from $x=0$ to $x=6.($Click on a graph to enlarge it$.)$

$($Round your answer to within two decimal places if necessary, but do not round until your final computation.$)$

a$.$ Use the Trapezoidal Rule to estimate the area.

Estimate: $T_6=$

b$.$ Use Simpson's Rule to estimate the area.

Estimate: $S_6=$