Hey there!
In order to solve for this particular question that you have asked.. we can just simply divide 28 from 4
Equation: 28 / 4
28 ÷ 4 / 4 ÷ 4
28 ÷ 4 = 7
4 ÷ 4 = 1
New equation: 7 / 1
Simply the newer equation and you have your answer
7 ÷ 1 = 7 / 1 ➡️ 7
Answer: 7 mph. (Miles Per Hour) ☑️
Good luck on your assignment and enjoy your day!
~LoveYourselfFirst:)