Its 4 because 2+2 is 4 and then you're subtracting 2 and then adding 2 again so its 4
Answer:
c. 0.9 cm, 1.2 cm, 1.8 cm
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Let x be total hours of battery life. We have been given that battery life of Vera's phone is down to 2/5. So remaining battery life,

We have been also given that it drains another 1/9 every other hour. Now let us substitute our given information into an equation.

Now we will solve for x.


Let us convert 2/5 into minutes. We know 1 hour has 60 minutes.

Therefore, remaining battery life will be 5 hours and 24 minutes.
3*2*6 is 36 yards cubed or 36 yards to the power of 3.