Answer:
I cant do them all for you, but essentially every equation there is an a, plug in 10 for a. Every equation with b, plug in 9 and every equation with c plug in 4. Then Solve/simplify
Step-by-step explanation:
Answer:

Step-by-step explanation:

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.
Answer:
e = 29.0 will be the answer.
Step-by-step explanation:
Use the sine rule in the given triangle,



d = 18.35


e = 29.002
e ≈ 29.0
Therefore, e = 29.0 will be the answer.
Answer:
yes
Step-by-step explanation: