Answer:
40 weeks
Explanation:
We must find the relationship between weeks and years. Given that 52 weeks make a year, it means that 3/4 of the year would be equivalent to
= 3/4 * 52 weeks
= 39 weeks
Since we know that Shanna attends school for 1 week longer than 3/4 of the year, it means she added school for 1 week more than 39 weeks. The number of weeks she attended school is thus
= 39 +1
= 40 weeks