What the absolute value of |9.3|

Which coefficient matrix represents a system of linear equations that has a unique solution ? options in photo*

Helena lost her marbles. but then she found them and put them in 44 bags with mm marbles in each bag. she had 33 marbles left over that didn't fit in the bags.

If rs 900 amounts to rs 1044 in 4 years, what sum will amount to 1368 in 3 1/2 years at the same rate