Solving Expansion Problems using the Distributive Property 1) 2( a + 9 )
2) 5 (1 - 2w )
3) -6 ( 2x - 3 )
4) (6a + 3b ) ( 1/3 )
5) 3.7 (4.5 + x )
6) -2( -x - 6 )
7) 16 ( .5x - 2 )
8) 0.3 (3x - 2 + 1.2y)
You can answer which ever you want.

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

I’m still confused on how to work the percentages

Matt had 5 library books. he checked out 1 additional book every week without retuening any books. whats the matching equation