Calculate the missing value:

Calculate the missing interest rate (to the nearest 0.01%)

Buckerfields Garden Supply makes custom fertilizer by mixing appropriate combinations of bulk 6% nitrogen fertilizer with bulk 22% nitrogen fertilizer. How many kilograms of each type should be mixed to make 300 kg of 16% nitrogen fertilizer?

Compute the dollar amount of interest that will be earned per year for four bonds listed as Kvr 7 ¾s12 and one bond listed as LMC 8s17.