A theater has 60 seats on the front row. There are seven additional seats in each following row.

Part A: Write a rule to represent the number of seats in any given row as an explicit formula

Part B: How many seats are in the 18th row?

Step-by-step explanation:

-We notice that this is a linear relationship which is generally expressed as:

Where

Given our constant value as 60 and the rate of change, m=7

let x be the row number and y the number of seats in the row.

-This is a linear relationship expressed as:

b. From a above, we have the linear relationship as y=7x+60

#To find the number of seats in the 18th row, we substitute x with  the row number:

Hence, there are 186 seats in the 18th row.

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step-by-step explanation: