Answer:
(a) 3d=81
(b) 27
Explanation:
every day, kojo write 3 pages
number of days he has written his story= d days
therefore number of pages he has written= 3d
from the final sentence,
3d= 81
(a) the equation to describe the situation:
3d= 81
(b) number of days kojo has been writing his story
3d= 81
dividing through by d
3d/3= 81/3
d = 27
therefore number of days = 27