Find the complement of an angle whose measure is 60 degrees show all work

Solve for x and select the correct answer

Allen's goal is to have between 1,500 and 1,600 bottles in his collection. write and solve a compound inequality to determine the number of weeks it will take allen to reach his goal. show your work. *

Given: m< ade = 60° and m< cdf = (3x + 15) prove: x = 15 what is the missing statement and the missing reason in step 5?