$85)$ Tracy has started her own business producing custom candles. For now, she is starting slowly, and offering only certain designs in the custom candles. Her favorite design, which was her first candle produced, had the following production time and costs:Candle Materials $($Wax andWicks$)$Labor to produce one candleManufacturing Overhead$10\mathrm{.}5$ lbs$.$ at $$6$ per pound$1$ hour at $$12$ per hour$1$ hour at $$4$ per hourTracy expects to experience a learning curve of $90\%$ in making subsequent candles for her customers:the total cost of for the first candle that Tracy produced $-5$ the total cost of four candles, if Tracy does not account for a learning curve.$-$c$.$ the total cost of four candles if Tracy does account for a learning curve$-$d$.$ the total cost average per candle, if Tracy does account for a leaming curve $-$ $per candle.per candle.rounded to the nearest $$0\mathrm{.}01$rounded to the nearest $$0\mathrm{.}01$