I think there was 17 boys at the beginning of the concert. But i don't know how to put it in terms of P
The correct answer is answered letter send out via email fruing the a syncranus hour is number c
Answer:

Step-by-step explanation:
#We use the base diagonal and the height diagonal to calculate the beam's height:

#The volume of the beam can then be calculated as:

Hence, the beam's volume is 
Answer:
-2x+1
Step-by-step explanation:
Answer:
a = 35°
Step-by-step explanation:
The angles in a triangle always add up to 180°
∴ 33 + 112 + a = 180
∴a=35°