!PLEASE ANSWER ASAP!

seats in a theater are curved from the front row to the back. the front row has 10 chairs, the second has 16 and the third has 22, and so on.

1. write a recursive rule for this series:

2. write an explicit rule for this series:
* if you simplify, please show all of the steps

3. using the explicit formula, find the number of chairs in row 5 (show your work):

4. the auditorium can hold 17 rows of chairs. write a sigma notation for this series, and then use either series formula to calculate how many chairs can fit in the auditorium.

$8

step-by-step explanation:

it is pretty much backwards.

you take the 4x2 multiply that, and that is = $8

whatvare the choices

step-by-step explanation:

combine all like terms then its just a 2 step equation

all three statements are true

step-by-step explanation:

a shipping fee of 5% is charged online with every item purchased online

first let's just take each option and calculate them based on this, to see if the answers matched

keith buys a 40 dollar book

40 x 0.05 = 2

therefore there will be a two dollar fee on keith's book

40 + 2 =42

the first statement is true

a chair costs $80

80 x 0.05 = 4

80 + 4 = 84

the second statement is true

george buys a 20 dollar calculator

20 x 0.05 = 1

20 + 1 = 21

the third statements are true

all three statements are true