a$)$ Calculate total settlement at points A and C

b$)$ Calculate settlement at A&C after $2$months

c$)$ Calculate the time it takes for each point to settle $0\mathrm{.}5"$

Use Simpson's Rule.

Cv $=0\mathrm{.}0005$

Hint: average stress$=[($stress$\_$top$)+4($stress$\_$middle$)+($stress$\_$bottom$)]/6.($i$.$e$.$ z$1=10\text{'},$ z$2=20\text{'}$ z$3=30\text{'}$