2 classes of 21 students each
21 × 2 classes = 42 students in total
42 × 3 mins = 126 minutes for 42 students
10 mins for 2 class pics = 20 minutes
126 + 20 = 146 minutes = 2 hours and 26 minutes
It should take 146 minutes (2 hours and 26 minutes) to take all the pictures.
Explanation:
First we write the fraction as a decimal. 5/8 is 0.625, so the height of Jill is 48.625 inches.
The difference is:

Answer:
c. 1.125 inches
They are both the same when simplified to its lowest point