Solve inequality then graph the solution on a number line

Will mark brainliest question in the pic.

Cd is the perpendicular bisector of both xy and st, and cy=20. find xy.

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?