Question

plz explain answer
and know the answer no need to give me answer for free points ​

Answer 1

Answer: please mark brainliest

Step-by-step explanation:

a) n = 12 ,  n + 1 = 13

12*2=24 numbers

b)  n = 25 ,  n + 1 = 26

25*2=50 numbers

c) 99*2=198 numbers

a)225

b)9025

c)11025

d)42025