Answer:
420
Step-by-step explanation:
if we add 30 to each of the length of speech, we get 420 seconds
SA=94
SA= 2(4*5) + 2(4*3) + 2(5*3)
SA=2(20) + 2(12) + 2(15)
SA=40 + 24 + 30
4 x pi = 12.57
Pi is approx. equal to 3.14
4 x 3 = 12
Answer: B
A proper fraction is when a fraction has the numeration less than the denominator
