<em>HOPE</em><em> </em><em>THIS</em><em> </em><em>WILL</em><em> </em><em>HELP</em><em> </em><em>U</em><em>.</em><em>.</em><em>.</em>
Answer:
a. $500
b. $250
Step-by-step explanation:
a. For zero items produced, cost will be-

b. For zero items produced, cost will be-

c. If 

∴ domain for cost function will be
and range will be 100
She had to spend 50 cents... since nickels value at 5 cents, 10 5 cent coins value at 50 cents
Hope this helps