120% of 75 is 90
Working out percentages
<span><span>Write 120% as 120/100
</span><span>Multiply with 75
120/100×75 = 90</span></span>
Convert the mixed number to an improper fraction:
Subtract the fractions to get your final answer:
Answer:
a) we know that this is convergent.
b) we know that this might not converge.
Step-by-step explanation:
Given the 
is convergent
Therefore,
(a) 
The power series 
has radius of convergence at least as big as 8. So we definitely know it converges for all x satisfying -8<x≤8. In particular for x = -3
∴ is convergent.
(b) 
-8 could be right on the edge of the interval of convergence, and so might not converge
The answer to number 5 is D
N could be equal to 9,10,11, etc
