Answer:
the answer is a
Step-by-step explanation:
i did the quiz
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.
I believe A=2 and B=6, sorry if I’m wrong
3(b+6) = 3*b + 3*6 = 3b + 18
Answer: -1>4
Step-by-step explanation: