$(10$ points$)$ Based on the resilient modulus testing results with a gage length of $6-$in for granular materials, the following equation was obtained:

$M_R=2,800{}^{0\mathrm{.}312}$

Here, $M_R$ is resilient modulus in psi and $$ is stress invariant $($or bulk stress$)$ in psi.

All the test data points were exactly on the curve of the above equation. Fill the blanks witl appropriate numbers.

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