If elephant grass grows 2 2/5 inches a day, how many inches will it grow in 7 days?

16 4/5 hah I did the math in my head sorry I didn't have an explanation

16 4/5 inches

Step-by-step explanation:

We can find the amount it will grow by taking the rate it grows times the time

growth = rate * time

= 2 2/5 * 7

Changing the mixed number to an improper fraction

2 2/5 = (5*2+2) / 5 = 12/5

growth = (12/5) * 7

=84/5 inches

Changing this back to a mixed number

5 goes into 84 16 times (5*16 = 80) with 4 left over

16 4/5 inches