7. The graph below shows the relationship between the amount of money in Sarah's
savings account over a period of time. Which
of the following statements is NOT true about
the relationship?
200
180
760
ACCOUNT BALANCE
7401
120
700
80
60
40
20
1 2 3 4 5 6 7 8 9 10
NUMBER OF WEEKS
A. After 5 weeks, Sarah has $ 100 in her
account.
B. If Sarah has a balance of $60, then 7
weeks have passed.
C. The relationship is proportional.
D. The situation can be represented by the
equation y = 200 - 20x.

quit

step-by-step explanation:

493 would be the correct answer

step-by-step explanation:

(a) common ratio in the given sequence is, 3

(b) push ups will do kendall do on the 20th week

step-by-step explanation:

geometric sequence is a sequence of numbers that follows a pattern were the next term is found by multiplying by a constant called the common ratio(r)

(a)

given the sequence: 6 , 18 , 54 , 162 ,

this sequence is geometric sequence where each term is 3 times the previous term.

therefore,

common ratio(r) = 3.

(b)

a formula for nth term of geometric sequence is given by;

,   where r is the common ratio between the successive terms and is the first term,

to find how many push ups will kendall do on the 20th week.

here. n = 20th term.

in the given sequence first term

then;

simplify:

therefore, push ups will do kendall do on the 20th week

this is a good question! i'll do some research and come back when i have the answer!