To determine how much Colin will spend to set up his aquarium, we need to add up the costs of the fish, filters, and plants.
- Cost of fish: $84.79
- Cost of filters (on sale): $44.75
- Cost of plants: $18.66
Now, let's calculate the total cost:
\[ \text{Total cost} = \text{Cost of fish} + \text{Cost of filters} + \text{Cost of plants} \]
\[ \text{Total cost} = 84.79 + 44.75 + 18.66 \]
Calculating this step-by-step:
- First, add the cost of the fish and filters:
\[ 84.79 + 44.75 = 129.54 \]
- Now, add the cost of the plants:
\[ 129.54 + 18.66 = 148.20 \]
So, the total cost Colin will spend to set up his aquarium is $148.20.
Based on the options given, the correct answer is:
d. $148.20