1 hour = 3600 seconds
3 × 3600 = 10800
<span>10800 yards per hour
</span>
1 mile = 1760 yards
10800 ÷ 1760 = 6.13
6.13 miles per hour
Answer:
a) 
b) 6.84 million
c) 2028.52
d) 47 years
Step-by-step explanation:
a)Here we know standard exponential growth rate is

In this put t=0 and a(t)=6.27 million
thus we get a = 6.27 million
now 
this is equal to(in 2012)=
b)Put t = 6
we get

=6.84 million
c) 
take log both sides
we get 16.52 years
d) 
take log both sides we get 47 years to get double the current population.
Whoever scored 72 shots out of 150. Did, In fact, score 48% of their shots.
Solution:
*To calculate the percentage represented by a ratio simply divide the numerator by the denominator and multiply by 100.
72:150 (72/150)
72/150
= 0.48
0.48(100) = 48
... 48%