Ron walks 22.5 in 5 hours finds his speed
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his speed would be 4.5 miles per hour

Step-by-step explanation:

if you do the distance divided by the hours you will get the answer.

  22.5/5=4.5

The unit rate that Jeremy can row is 1.33 miles per hour.

Unit rate is defined as the distance over a time period. The distance that Jeremy can row is given and the time period is given.
The distance (miles) = 1/3 = 0.33
The time period (hours) = 1/4 = 0.25
The unit rate is distance per time:
= 0.33/0.25 = 1.33

The unit rate that Jeremy can row is 1.33 miles per hour.