Erin is going to begin reading a book and will read the same number of pages each
night.
The graph below shows p, the number of
pages remaining in her book, after a nights.

The number of nights that she reads her book is 23

Step-by-step explanation:

According to the graph there are 156 pages and the slope shows she reads approximately 6.67 pages a night.

156 / 6.67 = 23. 3 = 23

add all the numbers and check the ones place.

the answer is 486. as the ones place is more than 4, the estimation will be the next 10 ie, 490

step-by-step explanation:

because 1/3 is a fraction. we can tell because there is a divisor symbol between the 1 and the 3. if we were to add 2 fractions together, we would add the numerators, which is the number on top, but not the denominators, which is the number on the bottom

1/3+1/3=2/3

hope this !