we know that
A quick way to estimate the sum of two numbers is to round each number and then add the rounded numbers
case a) We round the number to the nearest hundred
so
Round up is equal to 
Round up is equal to 
Find the estimate sum

case b) We round the number to the nearest tens
so
Round up is equal to 
Round down is equal to 
Find the estimate sum

Answer:
-2x^2+8x-31
Step-by-step explanation:
this Is a semi easy one the answer is 21. here is how you do it.
first change 56% into a decimal which comes out to be .56 now subtract it from 100% but in decimal form which is .1.
.1-.56=.44
now you want to take that .44 and multiply it by 14 which comes out to be 6.16 but you cant have .16th of a person so lets just say its 7 people.
now add 7 to the 14 clowns and you get 21.
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Answer:
add both sides ny 9.6 and divide both sides by 3.2, hope this helps!