There were 7.7 million families with dependent children in the UK in 2012, 1 in 7 of which had three or more dependent children. Married couples had a higher average number of dependent children in their family than other family types, at 1.8 children per family compared with 1.7 on average.
Answer:

Step-by-step explanation:
Given that opulation of 100,000 decreases by 2% each year.
Now question says to write a function in terms of t that represents the situation.
Question is talking about population decrease so we can apply decay formula. which is given by:

Where A is the population at any time t.
is the initial population so 
r is the rate of decrease so r=2%=0.02
t is the number of years
Now plug those values, we get:


Hence required function is
.
5 hours + 4 hours = 9 hours
30 minutes + 45 minutes =75 minutes
60 minutes in an hour, so 75 minutes =1 hour and 15 minutes, or 1.25 hours
9 hours + 1.25 hours =10.25 hours or 10 hours and 15 minutes.
Answer:
28.3
Step-by-step explanation:
formula for area of of a circle is
A = πr²
3² = 9
3.14 * 9 = 28.26
rounded to tenth power = 28.3
Hope this helps dude