Calculating Ratios and Estimating Credit Rating

The following data are from Kellogg's $10-$K report dated December $29,2018($$ millions$).$

a$.$ Use the data above to calculate the following ratios: EBITA$/$Average assets, EBITA Margin, EBITA$/$ Interest expense, Debt$/$EBITDA$,$ CAPEX$/$Depreciation Expense. Definitions for these

ratios are in Exhibit $7\mathrm{.}4.$

b$.$ Refer to Exhibit $7\mathrm{.}4$ and the ratios you calculated in part a$.$ Estimate the credit rating that Moody's might assign to Kellogg.

Round answers to one decimal place $($percentage ex: $0\mathrm{.}2345=23\mathrm{.}5\%)$

Please answer all parts of the question.