Answer:
Step-by-step explanation:
3% increase
6% decrease
18% increase
Answer:
0.018125r^2n
Step-by-step explanation:
Answer:

Step-by-step explanation:
Before subtracting we require the fractions to have a common denominator.
The lowest common multiple of x + 4 and x + 6 is (x + 4)(x + 6)
Multiply the numerator/denominator of the first fraction by x + 6 and
multiply the numerator/denominator of the second fraction by x + 4
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- 
Expand the numerators and simplify leaving the denominator
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