Answer:
62.7
Step-by-step explanation:
165 * 0.38 = 62.7
This is assuming you mean an object weights 38% less on mars then earth, if its the other way around(they weight 38% more on mars then earth) it would be,
165 * 1.38 = 227.7
$16.68 is the most expensive item you can order with $20.00
Answer:
In attachment
Step-by-step explanation:

The unknowns should be 1 or 3. we don't know the total number of children and parents in the room, but we have a clue which 25, so if we were to subtract 9 from 25 we would get 16. i would recommend number 1
The answer is n=7 please mark Brainelist