Final answer:
The cost, savings, and percentage for the five job postings cannot be determined without more information.
Step-by-step explanation:
a) The cost of each posting is not provided in the information given, so we cannot determine the exact amount without more details.
b) Since the cost of one posting is not given, we cannot calculate how much less Maple Place pays per posting compared to the price for one posting.
c) The cost of the five postings is also not given, so we cannot determine the total cost without more information.
d) The total savings for the five postings cannot be calculated without the cost of each posting.
e) Since the cost and total savings are not provided, we cannot express the total savings as a percent of the total cost for the five postings.