To find out how much money Dominic will spend to make 12 loaves of bread, you can multiply the cost per loaf by the number of loaves:
\[ \text{Total cost} = \text{Cost per loaf} \times \text{Number of loaves} \]
Plug in the values:
\[ \text{Total cost} = 1.58 \times 12 \]
Now, calculate the total cost:
\[ 1.58 \times 12 = 18.96 \]
Therefore, Dominic will spend $18.96 to make 12 loaves of bread.