Answer:
7 is the number of how many days are in a week. So 7 x 3 is 21. That is less than 24 days. 24 days is 3 weeks and 3 days.
Step-by-step explanation:
The given line has a slope of -1 so the perpendicular line will have a slope of -1/1=1
y=x+5
7.5 xxx. 8.0 xxx 8.5 xxx 9.0 xxxxx 9.5 xxxx
These are vertical angles so they are equal so
6a + 11 = 2a + 83
now solve for a

By inspection 1 is a root of y ,
Hence , (x-1) is a factor of y ,

Hence , the 2 other roots are -1/2 and 3 , and the above graphs confirms the same.
Hope it helps you :)