Noah’s age is 3 years more than twice tinas age. the sum of their age is 24. how old are they?

Noah is 17 and Tina is 7.
Why?
Let t represent Tina’s age.
So, 2t + 3 is Noah’s age.
This is your equation;
2t + 3 + t = 24
Now, simplify so t is on one side.
3t = 24 - 3
3t = 21
t = 21/3
t = 7
Tina’s age is 7, and Noah (according to the expression made for him) is 17.
Check:
7 + 17 = 24

If you divide 0.1 and 0.6 you wii get 0.166666 which rounds to .167 which is answer b