Answer:
here are two possible solutions
Step-by-step explanation:
X = age of Mikhail
x+x-12 = 36
2x= 36 + 12
2x = 48
x = 48/2
x= 24
The answer is 3 1/3 + 2 1/3 = 5 2/3
The answer is D
You just need to subtract term 1 (5) from term 2 (10) to find the answer, and the common difference between each sequential term is 5