The principal of a school claims that 30 % of grade 3 pupils stay in the playground after their classes. A survey among 500 grad
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<u><em>Answer:</em></u>
Craig earns $1,200 each month
<u><em>Explanation:</em></u>
We are given that Craig pays a total of $720 each year for his telephone service
We also know that a year has 12 months
<u>This means that:</u>
Craig pays dollars each month for his telephone services
We are given that the monthly phone bill is of his monthly earnings
Assume that his monthly payment is x
<u>We have:</u>
dollars
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