Extra problem

For the site below and consolidation data, complete the following questions:

$($a$)$ Calculate the initial effective stress at the middle of the clay layer, sigma$\_$O$\text{'}=$

$($Express your answer as an integer$)$

$($b$)$ Calculate the final effective stress at the middle of the clay layer if the sandy fill were removed, sigma$\_$f$\text{'}=$

$($Express your answer as an integer$)$

$($c$)$ Calculate the rebound of the clay layer if the sandy fill were removed, Delta$\_H=$

$($Express your answer with three decimal places; include the correct sign with your answer, i$.$e$.,$ for rebounding, the answer should be negative$)$