Answer:
D. 30% is correct.
Step-by-step explanation:
This is how I know D is correct:
1. I crossed out any unreasonable answers like C and B because I know for a fact that 4.9 to 6.37 cannot be increased by 1% or 77%.
2. The only two answers left are D and A.
3. First taking 4.9 and figuring out the 23% and 30% part of it so:
23%=1.12700 and 30%=1.47. Since 30%(1.47) seemed easier to add on to 4.9 I added the two (4.90+1.47) and got 6.37, this got me my answer faster since 6.37 was the same amount as the puppy's ending weight D is surely the correct answer.
I hope this helped you out:)
