The depth of a river in June was 4 feet. Later in the summer the depth of the river at the same spot was 3.2 feet. What was the percent of change in the depth of the river?

20 percent change in the depth of the river

Step-by-step explanation:

4 - 3.2 = .8

.8 x 100 = 80

80/4 = 20

20%

answer: 20

step-by-step explanation:

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles