Answer:

Step-by-step explanation:
Given

Required
Fill the array using doubling and halving
Question is incomplete, as the array is not given.
However, the solution is as follows:

Double 25 and half 68

Double 50 and half 34

The above is now easy to solve

Answer: 11/5
Step-by-step explanation:
you would do (2) times (5) to get 10.
then you'd add 1+10 to get 11.
write this new number as the numerator... 11/5.
Answer:
The answer is 42
Step-by-step explanation:
6²= 36
3(3)=9
36+9×2/3 = 42
Take 6.8 and divide by 2.72 and you get 2.5 hours
Then he should sell all of them for 3 dollars and he'll get $450 dollars from all 150 t-shirts