Am i doing this correctly?

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.

Aright triangle includes one angle that measures 30º. what is the measure of the third angle? a. 30º b. 90º c. 60º d. 130º

25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.