Question: Define a two-dimensional array of ints named grades. It should have 30 rows and 10 columns. How many elements are in the following array? Write

Define a two-dimensional array of ints named grades. It should have 30 rows and 10 columns.

How many elements are in the following array?

Write a statement that assigns the value 56893.12 to the first column of the first row of the sales array defined in question 8.20.

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