Two models

R$1$

and

R$2$

are given for revenue $($in millions of dollars$)$ for a corporation. Both models are estimates of revenues from $2030$ through $2035,$ with

t $=0$

corresponding to $2030.$

R$1=7\mathrm{.}26+0\mathrm{.}26$t $+0\mathrm{.}03$t$2$R$2=7\mathrm{.}26+0\mathrm{.}1$t $+0\mathrm{.}01$t$2$

Which model projects the greater revenue?

R$1$ projects the greater revenue.

R$2$ projects the greater revenue.

$$

How much more total revenue $($in millions of dollars$)$ does that model project over the six$-$year period ending at

t $=5?$

$($Round your answer to three decimal places.$)$