a$.$ Determine the approximate learning percentage.

b$.$ Using your answer from part $a,$ estimate the average completion time per repetition, assuming

a total of $30$ repetitions are planned.

Students in an operations management class have been assigned four similar homework problems.

One student noted that it took her $50$ minutes to complete the first problem. Assume that the

four problems are similar and that a $70$ percent learning curve is appropriate. How much time can

this student plan to spend solving the remaining problems?

A subcontractor is responsible for outfitting six satellites that will be used for solar research.

Four of the six have been completed in a total of $600$ hours. If the crew has a $75$ percent learning

curve, how long should it take them to finish the last two units?

The fifth unit of a $25-$unit job took $14\mathrm{.}5$ hours to complete. If a $90$ percent learning curve is

appropriate: