Final answer:
The caterer can make 26 salads. There will be 3 radishes left over.
Step-by-step explanation:
To find out how many salads the caterer can make, divide the total number of radishes by the number of radishes used per salad. In this case, there are 107 radishes and 4 radishes are used per salad:
Number of salads = 107 radishes / 4 radishes per salad = 26.75 salads
Since the caterer can't make a fraction of a salad, they can make 26 salads.
To determine how many radishes will be left over, subtract the number of radishes used from the total number of radishes:
Number of radishes left over = 107 radishes - (4 radishes per salad x 26 salads) = 107 radishes - 104 radishes = 3 radishes
Therefore, the caterer can make 26 salads and there will be 3 radishes left over.