andrea is designing the seating arrangement for a concert in her local park. to give everyone a good view, each row must have 4 more seats than the row before it, and the first row can only have 10 seats. andrea plan the rest of the seating by solving for how many seats are in row 20. then explain to andrea how to create an equation to predict the number of seats in any row. show your work, and use complete sentences. (10 points)

The number of seats in the 20th row are 86 .

Step-by-step explanation:

As given

Andrea is designing the seating arrangement for a concert in her local park.

The first row can only have 10 seats.

To give everyone a good view, each row must have 4 more seats than the row before it .

                                                                  = 10 + 4

                                                                  = 14

                                                                           = 14 - 10

                                                                           = 4

Thus the sequence for nth terms become

For n= 86

Put in the above

Therefore the number of seats in the 20th row are 86 .

except if the answer is in the value of money, then, it will matter. it will have to be $0.40, but i can tell this is not a money question, so .4 should be the right one.