I need help with the excel portion mostly and using solver

Rico$-$AG is a German fertilizer company, which has just received a contract to supply $1,000$ tons of $3-12-12$ fertilizer. The guaranteed composition of this fertilizer is $($by weight$)$ at least $3\%$ nitrogen, $12\%$ phosphorus, and $12\%$ potash. This fertilizer can be mixed from any combination of the raw materials described in the table below.

$\backslash$table$[[$Raw Material,$\%$ Nitrogen,$\%$ Phosphorus,$\%$ Potash,$\backslash$table$[[$Current World Price$/$Ton$],[($Euro$)]]],[$AN$,50,0,0,160],[$SP$,1,40,5,170],[$CP$,2,4,35,204],[$BG$,1,15,17,182]]$

Rico$-$AG wants you to determine the least cost mix to produce the fertilizer order.

a$.$ Formulate a LP model for this problem. Write out the linear optimization problem being solved. $(6$ pts $)$

b$.$ Develop a spreadsheet model in EXCEL to solve the problem and solve it$.(6$ pts $)$

c$.$ What is the optimal solution $($i$.$e$.,$ total cost and amount of each raw material used$)?(4$ pts$)$

$1$