b$.$ Calculate the exponential smoothing with trend forecast for these data using an a of $0\mathrm{.}20,$ a delta of $0\mathrm{.}30,$ an initial trend forecast $($ T$\_(1))$

of $1\mathrm{.}00,$ and an initial exponentially smoothed forecast $($F$\_(1))$ of $31\mathrm{.}00.$

Note: Round your answers to $2$ decimal places.

c$-1.$ Calculate the mean absolute deviation $($MAD$)$ for the last nine months of forecasts.

Note: Round your answers to $2$ decimal places.

Problem $18-7($Algo$)$

The following table contains the demand from the last $10$ months:

a$.$ Calculate the single exponential smoothing forecast for these data using an a of $0\mathrm{.}20$ and an initial forecast $($ F$\_(1))$ of $32.$

Note: Round your answers to $2$ decimal places.

Need help answering question B and C$-1.$