Your answer is: 63 is 90% of 70.
The work (if needed) is shown above :)
28mi/1 hr = 28 mi/60 min = 1 mi/(60/28) min =
28 mi/hr = 28 mi/60 min since there are 60 min in 1 hr
1 mi/(60/28) min since you divide top and bottom of 28/60 by 28 to get
1 mi/(60/28) min = 1mi/(15/7) min = 1 mi/ 2 1/7 min
The answer is
15m^2n + 4/n
Hope that helps, have a nice night or day <4
Use photo math it will help