EXERCISE $5-8$ High$-$Low Method; Predicting Cost $[$L$01,$ L$03]$

The Lakeshore Hotel's guest$-$days of occupancy and custodial supplies expense over the last seven months were:

$\backslash$table$[[$Month$,\backslash$table$[[$Guest$-$Days of$],[$Occupancy$]],\backslash$table$[[$Custodial Supplies$],[$Expense$]]],[$March $...........,4,000,$$$7,500$

Note: It is very important math. I need the details solve of $01$ and $02$ question. Dont solve it in western method. Solve it in indian way.