I don't need the answer but can someone explain what this is asking me for?: Find a number such that 16 less than twice the number is 84.

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

Which equation shows the quadratic formula used correctly to solve 5x2 + 3x -4 0 for x? cos -3+ v (3) 2-4() 2(5) 3+ |(3)² +4() 205) 3+ (3) 2-4() -3+ v (3)² +4()

Acar travels 85 kilometers per hour. what is the equivalent speed in meters per hour?