A matrix M has 3 rows and 4 columns.
a11 a12 a13 a14
a21 a22 a23 a24
a31 a32 a33 a34

The 12 entries in the matrix are to be stored in row major form in locations 7,609 to 7,620 in a computer’s memory. This means that the entries in the first row (reading left to right) are stored first, then the entries in the second row, and finally the entries in the third row.

a) Which location will a22 be stored in?
b) Write a formula (in i and j) that gives the integer n so that aij is stored in location 7,609+n.
c) Find formulas (in n) for r and s so that ars is stored in location 7,609+n.