occasions, customers have not been able to purchase the Uicald or their choice. Because of the size of the store, no new ovens can be added. At a staff meeting, one employee suggested ways to load the ovens differently so that more loaves of bread can be baked at one time. This new process will require that the ovens be loaded by hand, requiring additional manpower. This is the only thing to be changed. If the bakery makes $1,500$ loaves per month with a labor productivity of $2\mathrm{.}344$ loaves per labor$-$hour, how many workers will Lackey need to add? $($Hint: Each worker works $160$ hours per month.$)$

$01\mathrm{.}13$ Refer to Problem $1\mathrm{.}12.$ The pay will be $$8$ per hour for employees. Charles Lackey can also improve the yield by purchasing a new blender. The new blender will mean an increase in his investment. This added investment has a cost of $$100$ per month, but he will achieve the same output $($an increase to $1,875)$ as the change in labor$-$hours. Which is the better decision?

a$)$ Show the productivity change, in loaves per dollar, with an increase in labor cost $($from $640$ to $800$ hours$).$

b$)$ Show the new productivity, in loaves per dollar, with only an increase in investment $($ $$100$ per month more$).$

c$)$ Show the percent productivity change for labor and investment.

$-1\mathrm{.}14$ Refer to Problems $1\mathrm{.}12$ and $1\mathrm{.}13.$ If Charles Lackey's utility costs remain constant at $$500$ per month, labor at $$8$ per hour, and cost of ingredients at $$0\mathrm{.}35$ per loaf, but Charles does not purchase the blender suggested in Problem $1\mathrm{.}13,$ what will the productivity of the bakery be$?$ What will be the percent increase or decrease?