The decrease was 27%.
Step-by-step explanation:
Old value = $980
New value = $720
Decrease = Old value - New value

Percent decrease = 

Rounding off to near whole percent
Percent decrease = 27%
The decrease was 27%.
Keywords: Percentage, subtraction
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Answer:
3 + 5 + 7
Step-by-step explanation:
In addition it does not matter what order the numbers are in.
Both the numerator and denominator can be divided by three, so the simplest form is

.
I think it is 14 if my calculations are correct.
Hope it helps
Answer:
33
Step-by-step explanation:
3 years ago, the difference in ages was twice Daniel's age. So, Daniel was 20/2 = 10 years old at that time. Ben was 30.
Now, Ben is 33.
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If two numbers have a ratio of 3:1, their difference is (3-1) = 2 times the smaller number.