The length of a rectangular hall is 2 meter less than 3 time of width. If breadth is b meters, what is the length?

Np4=12np2 with clear explanation.

Celeste wants to have her hair cut and permed and also go to lunch. she knows she will need $50. the perm cost twice as much as her haircut and she needs $5 for lunch. how much does the perm cost?

The median for the given set of six ordered data values is 29.5 9 12 25 __ 41 48 what is the missing value?