You are given a math word problem and you are supposed to apply multiple mathematical operators like addition, subtraction, multiplication or division on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

[EX Q]: 86 students are going hiking . each school- bus can take 9 students . how many school-buses are needed ?
[EX A]: 9.555555555555555

[EX Q]: sarah is making bead necklaces . she has 945 beads and is making 7 necklaces with each necklace using the same number of beads . how many beads will each necklace use ?
[EX A]: 135

[EX Q]: a garden has 52 rows and 15 columns of bean plants . how many plants are there in all ?
[EX A]:
780