Answer:
a = 300
b = 150
c = 60
d = 30
e = 6
To find the answer:
One way is to put the percents into fractions simplest form and divide by 600.
So:
a = 1/2
b= 1/4
c = 1/10
d = 1/20
e = 1/100
Divide these by 600, you get the same answers.
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The Advanced Way:
To find a percent, you (can) turn the percents into fractions and multiply the number from the fraction.
For example: Question A:
600 x 1/2 = 300
You get the same answers as the ordinary version too. From right above Advanced.
Have a great evening, good luck on your homework.