With 3 math problems i will upvote

1.)what is the common difference d of the sequence?

9, −8, −25, −42, −59,
enter your answer in the box.
d =

2.)which answer is the explicit rule for the sequence:
13, 10.5, 8, 5.5, 3, 0.5,

a. a n power =15.5−2.5n

b. a n power=15+2.5n

c. a n power=15.5+2.5n

d. a n power=15−2.5n

3.)haylee has $440 in her savings account. she deposits $65 in her account every week.
how much money will haylee have in her savings account after 25 weeks?

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer

just get this app called photo math it should be able to do those