Point C lies on segment BD. IF BD is 39x - 61, BC is 4x - 8, and CD is 12x - 4, the length of CD would be ___ units long. Point S is on a line segment between points R & T. If RT is 54, RS is 3x + 6, and ST is x + 14, then the value of x is ___.
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[15 points, algebra 2]simplify the complex fraction and find the restrictions.

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

Will mark the brainliest.paula makes stained-glass windows and sells them to boutique stores. if her costs total $12,000 per year plus $4 per window for the frame. how many windows must she produce to earn a profit of at least $48,000 in one year if she sells the windows for $28 each?