C is the correct answer using scientific notation Hope this helps! :D
Answer:
16
Step-by-step explanation:
since sarah spent 60 and there was only $12 left you must
1: subtract 12 from 60 which is 48
2. divide 48 by 3 because she bought 3 pairs of jeans which is 16
16 - 4 [ 3 + 2 / (9 - 7)]
16 - 4 [ 3 + 2 / 2)]
16 - 4 [ 3 + 1 ]
16 - 4 [4]
16 - 16
0 <===
See the attached picture.