Sure, let's solve this step by step.
1. Determine the cost of a single daily ticket:
Marli knows the price for a single daily ticket is 3.40.
2. Calculate the total cost of 4 daily tickets:
[tex]\[
\text{Cost of 4 daily tickets} = 4 \times 3.40 = 13.60.
\][/tex]
3. Determine the cost of a weekly ticket:
Marli knows the weekly ticket costs 10.00.
4. Calculate the amount of money Marli saves by buying a weekly ticket instead of 4 daily tickets:
[tex]\[
\text{Amount saved} = (\text{Cost of 4 daily tickets}) - (\text{Cost of weekly ticket}) = 13.60 - 10.00 = 3.60.
\][/tex]
Therefore, Marli saves a total of 3.60 by purchasing the weekly ticket instead of four daily tickets.