Don’t follow the link he or she gave you.
You can group first two conjunctions and second two:

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In first brackets you have common

and in second brackets common is 5:

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This can be done algebraically:
300*x=330 Where x is the multiplier
Therefore x=330/300=1.1
To find a percentage of a number you multiply by the percentage divided by 100.
So 330 is 110% of 300, which is an increase of 10%.
Answer:
Step-by-step explanation:
look at it