A percent is how many out of 100.
13/20 is how many out of 100?
You multiply the top and bottom by 5, as 5x20 is 100
13x5 is 65
Therefore, 65 out of every hundred cans, or 65%, are recycled
For questions 1 and 2 , write each expression using a single exponent.

<span>For questions 3 and 4, simplify each expression.
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<span>For questions 6-8, multiply the following polynomial.
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25 to 45 can also be written as 25/45
Both numbers are divisible (can be divided by) 5
25 divided by 5 = 5
45 divided by 5 = 9
So 25/45 = 5/9
They are equivalent fractions because they’ve been divided by the same, shared number