The function b(r)=7+4(r−1) represents the number of bricks in row r of a structure. what does the value 7 represent in this situation? answers choices a given row of bricks contains 7 more bricks than the previous row. there are 7 bricks in the first row of the structure. every row contains exactly 7 bricks. the structure contains 7 rows of bricks.

There are 7 bricks in the first row of the structure.

Step-by-step explanation:

Our function is b(r) = 7+4(r-1)

In this function, r is the row number.

If we substitute 1 in for r, we have

b(1) = 7+4(1-1) = 7+4(0) = 7+0 = 7

This corresponds with the 7 at the beginning of the function; this means that the 7 in the function is the number of bricks in the first row.

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step-by-step explanation:

can i have brainliest

answer: 7

step-by-step explanation: