Which of these statements are correct about a line segment with a length of 12 units in a coordinate plane? Select all that apply

Given: m∠ adb = m∠cdb ad ≅ dc prove: m∠ bac = m∠bca lol

Use sigma notation to represent the following series for 9 terms.

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?