Final answer:
Determine which summer camp is more cost-effective for a 7-day stay, we calculate the total cost for each camp. Camp Three Oaks costs $630.00 per person, whereas Camp Deep Creek costs $640.00 per person. Therefore, Camp Three Oaks (option A) is the less expensive option.
Step-by-step explanation:
The question requires a comparison of the total costs for a 7-day stay at two summer camps, Camp Three Oaks and Camp Deep Creek, to determine which would be more cost-effective for a local youth group. To solve this, we need to calculate the total cost for each camp for 7 days.
For Camp Three Oaks, the cost is straightforward: $90.00 per person per day. So, for 7 days, this would be 90 x 7 = $630.00 per person.
For Camp Deep Creek, the cost calculation is in two parts: the first three days cost $120.00 per person per day, and any subsequent days cost $70.00 per person per day. Therefore, the cost for the first three days is 120 x 3 = $360.00, and the cost for the remaining four days is 70 x 4 = $280.00. The total cost for Camp Deep Creek is then $360.00 + $280.00 = $640.00 per person.
Comparing the two totals, Camp Three Oaks costs $630.00 per person, while Camp Deep Creek costs $640.00 per person. Thus, Camp Three Oaks is the cheaper option.