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

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

step-by-step explanation:

through just a quick inspection, one can see that the graph of this cubing function starts in quadrant iii and ends in quadrant i.   when x = 0, y = 3, so the y-intercept is (0, 3).

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