What is...a increased by 25%

Answer:   1..25aStep-by-step explanation:a + 25%·a = a(1 + 0.25) = 1.25a_____Comment on percentagesThe symbol "%" is a shorthand way to write "/100", so 25% = 25/100 = 0.25.Of course, 100/100 = 100% = 1.Adding 25% of something to 100% of it gives 125% of it, the original amount multiplied by 125/100 = 1.25.