Refer to the attached $2$ tables below $-$ one is actual costs and one is budgeted costs to answer the below questions: $($Amounts are in thousands of dollars$).$

a$)$ What is the TBC for the entire $10-$week project? $(2$ marks$)$ Use Fig$\mathrm{.}5\mathrm{.}6$ to answer this question.

b$)$ What is the cumulative budgeted cost at end of week $6?(2$ marks$)$ Use Fig. $5\mathrm{.}6$ to answer this question.

c$)$ What is the cumulative actual cost at the end of week $6?(2$ marks$)$ Use Fig $5\mathrm{.}7$ to answer this question.

d$)$ Determine whether there is a cost overrun or underrun and how much? $(4$ marks$)$ Use both figures to answer this question.

e$)$ What is causing it$?($here you need to look at Tasks $1,2$ and $3$ and compare to the budget for each task to determine what is driving the change vs budget$)(4$ marks$)$ Use both figures to answer this question.

Figure $5\mathrm{.}7$ This is a table of ACTUAL COSTS

Figure $5\mathrm{.}7$ This is a table of ACTUAL COSTS

$\backslash$table$[[,$Week$],[,1,2,l{n}_{},4,5,6],[$Task $1,10,16,8,,,],[$Task $2,,10,10,12,24,12],[$Task $3,,,,,5,5],[$Task $4,,,,,,],[$Total$,10,26,18,12,29,17],[$Cumulative$,,4,,,,]]$

Amounts are in thousands of dollars.

Figure $5\mathrm{.}6$ THIS IS A TABLE OF BUDGETTED COSTS BY TASK BY WEEK

$\backslash$table$[[,$Week$],[,$TBC$,1,2,3,4,5,6,7,8,9,10],[$Task $1,30,10,15,5,,,21,,,,],[$Task $2,70,,10,10,10,20,10,10,5,,],[$Task $3,40,,1,$H$,,5,5,25,5,,],[$Task $4,30,y,?,$B$,,$y$.,11,$M$,5,5,20],[$Total$,170,10,25,15,10,25,15,35,10,5,20],[$Cumulative$,,$res,$6,\sqrt[8]{46},,,,,,,17,]]$