Help me please help me, I need the answer because only have 1 hour for finish and my grqades is so bads and these is extra credit please if you don't know the answer don't answer, the homework is in the link https://web. kamihq. com/web/viewer. html?state=%7B%22ids%22%3A%5B%221AD dpUXkqfhfov4E7Ja2VmvY_dGmqDqRu%22%5 D%2C%22authuser%22%3A%220%22%2C%22f rom%22%3A%22classroomopenext%22%7D& amp;kami_user_id=7473954

step-by-step explanation: so we look at the formula un = a + (n-1)d

un is the amount of seats

n is the nth term aka row number

a is the original sequence/row number

d is the difference between each term

so in this a=22 d=6 and n can remain as n because we are simply formjng a rule

lets put these in the equation

un=22+(n-1)(6)

this is your answer to part a

however

lets double check that this is correct, we'll try putting it into the second term

un=a+(n-1)d

u2=22+(2-1)(6)

u2=22+6

u2=28

as the question said the second row has 28 seats so now we know the formula we made is correct.

as for part b

un=a+(n-1)

its asking us to find a row with 100 seats.

remember un was the amount of seata so all we do is substitute this in.

un=100 a=22 d=6

un=a+(n-1)d

100=22+(n-1)(6)

so now we simplify to find n which is the row number.

100-22=22+(n-1)(6)-22

78=(n-1)(6)

78/6=(n-1)(6)/6

13=n-1

13+1=n-1+1

14=n

so now we know that in the 14th row there is 100 seats.

hope this and that you understood! its my first time using the app or anyone out on here : p its also me to revise so a bunch! ask more questions if you dont understand ☺

its a i did it myself

step-by-step explanation:

$205,000 here you go i had to guess it but i got it correct so yeah

dont't really have enough info here but its likely

sss for the three sides being congruent ( its stands for side side side)

or

sas   for side angle side.   so a side is congruent and and angle and a side