The answer is 3 of each. 3X7=21; 14X3=42, and 42+21= 63.
15.5 I believe but don’t hold me to it!
Answer:
2.33 units
Step-by-step explanation:

Answer:
<em>Mark used 6.43 megabytes of data.</em>
Step-by-step explanation:
The given equation is:
, where
is amount of data used in megabyte.
For finding the amount of data Mark used, <u>we need to solve the above equation for
</u>.
First subtracting 5.25 from both sides, we will get.....
Now, dividing both sides by 0.3 ...........

<em>(Rounded to the nearest hundredth)</em>
Thus, Mark used 6.43 megabytes of data.