What is the simplified form for 5-9 .-57 ?

Acompany is testing in comparing to lightbulb designs the box plot shows the number of hours that each lightbulb design last before burning out which statement is best supported by the information of the plot

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

Louis wants to carpet the rectangular floor of his basement.the basement has an area of 864 square feet.the width of the basement is 2/3 it's length. what is the length of louis's basement