Well, isn't that just a happy little math problem! To find the whole number, you can set up a simple equation: 0.35x = 28, where x represents the whole number. By dividing both sides by 0.35, you'll find that the whole number is 80. Keep up the good work, you're doing great!
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28
It is: (35-28)/28 times 100 = 25% increase
35% of 80: 35 ÷ 100 × 80 = 28
Expressed as a percentage, 28/35 x 100 = 80 percent.
28 is 35% of 80.25% of 80:= 25% * 80= 0.25 * 80= 20