Answer If 1+4=5 and 2+5=12 and 3+6=21 how much does 5+8=
The answer would be 34. The pattern looks like they are adding the sum to the next expression. So 21+5+8=34. Hope I could help!!:-)))
Answer:
The answer is 32 because 1+4=5 and 2+5=21 with a difference of 7 the the difference with 12 and 21 is 9 so and on two to make 11 which is 32
