Final answer:
The total number of girls who attended the camps cannot be determined from the given ratios without additional data regarding the actual numbers or overlap of the camp attendees.
Step-by-step explanation:
The question given presents two separate ratios: the ratio of girls to boys who went to leadership camps across the country last summer, which is 3:2, and the ratio of girls to boys who went to space camp, which is 1:3. It is important to note, however, that the question does not provide the individual numbers of girls and boys who attended each camp, nor does it specify whether there is any overlap in the populations of the two camps (i.e., the same children attending both camps). Consequently, without additional information, it is impossible to determine the exact number of girls that attended the camps.
Therefore, the correct answer is d) Cannot be determined from the given information.