You have to use the different exponent rules you can search them up to see what you have to do
2×8=16 bring down the 6 carry the one 2×1=2+1=3 so you have 36
bring down a 0 3×8=24 carry the 2 bring down the 4 3×1=3+2=5 which is 540
540+36=576
the answer is 576
Its 100 because its not rounded to the nearest whole like 200 because its less than 50 so it would round down
Rational functions are written as fractions. The expression equivalent to
is 
<h3>Rational functions</h3>
Given the rational function expressed as:

This can be further expressed as:

Factorize the denominator to have;

Hence the expression equivalent to
is 
Learn more on rational function here: brainly.com/question/1917026
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Answer:
Step-by-step explanation:
draw a tangent starting from (0,80) and touches at (10,60)... Example attached if needed... Good Luck! ;)