First you would subtract Minas friends mile time from Minas mile time.
11.02-9.4
Mina is 1.62 minutes faster than her friend
<span>0.01388888888 is your answer
</span>
The answer is 4700 megabytes.
1 giga = 1000 mega
1 gigabyte = 1000 megabyte
4.7 gigabyte = x megabyte
1 gb : 1000 mb = 4.7 gb : x
x = 1000 mb * 4.7 gb : 1 gb
x = 4700 mb