Need rn! worth 35 points. (you MUST answer all three questions)

How long would it take for a ball dropped from the top of a 576-foot building to hit the ground? round your answer to two decimal places.

What is the measure of ac? 5 units 13 units 26 units 39 units

Dakota earned $7.50 in interest in account a and $18.75 in interest in account b after 15 months. if the simple interest rate is 4% for account a and 5% for account b, which account has the greater principal? explain. to make it a little easier, there is an image. good luck!