Plllz helpWhich math expression can be used to represent this phrase? 5 less than triple a number x

What is the solution to the equation? k/6.4=8.7 2.3 5.568 15.1 55.68

Tabby sells clothing at a retail store, and she earns a commission of 6.25% on all items she sells. last week she sold a pair of jeans for $32.50, a skirt for $18.95, and 2 blouses for $14.95 each. what was tabby's total commission? a $4.15 b $5.08 c $81.35 d $348.60

Which is the solution to the inequality? 2 3/52 1/15 b< 3 2/15 b> 3 2/15