Rаchel’s fаvоrite sweet snаck fооd is Oreo cookies. She gets 50 utils of satisfaction from consuming the first Oreo cookie of the afternoon, an additional 80 utils of satisfaction from consuming the second Oreo cookie of the afternoon, and an additional 30 utils of satisfaction from consuming the third Oreo cookie of the afternoon. If she consumes a total of four Oreo cookies this afternoon, Rachel’s Total Utility would be 180 utils. If Rachel consumes only one Oreo cookie this afternoon, her Total Utility will be ___ utils.