at whicitem2 ebookreferencesitem 2 mrs. simpson buys loaves of bread and quarts of milk each week at prices of $1 and 80 cents, respectively. at present she is buying these products in amounts such that the marginal utilities from the last units purchased of the two products are 80 and 70 utils, respectively.h rate is total utility increasing: a constant rate, a decreasing rate, or an increasing rate? how do you know? multiple choice 1 a decreasing rate, because marginal utility is declining. a constant rate, because marginal utility is increasing. an increasing rate, because marginal utility is declining.