20. The original price of a computer is $599.99. Suzie has a 15%-off coupon
for the computer. A sales tax of 7% will be added to the sale price of the
computer. Which expression would calculate how much Suzie will pay for
the computer?
A $599.99(0.85)(1.07)
B. $599.99(0.85)(0.07)
C. $599.99(0.15)(1.07)
$599.99(0.15)(0.07)

sine

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