You had a y amount of dollars and gave 4 away, now you have less than Cindy. Cindy only has 2 dollars.
Reflection over the y-axis, translation 2 units down
The square root of 7 would like between 2 and 3. This is because 2 x 2 is 4's square root and 3 x 3 is nine's square root. Seven is between four and nine.
The answer is 20 not 5 or 15 or 10
Megabyte difference = 96 - 24 = 72
time difference = 1:15 - 1:10 = 15 min.
Download rate would be: 72 / 15 = 4.8
So, Your Answer would be 4.8 mb/min
Hope this helps!