Suppose a bank account offers two kinds of checking accounts. Account A - A $0.20 charge for writing each check and no service charge.
Account B - A $0.10 charge for writing each check and a monthly service charge of $1.50.
How many check would have to be written for the cost of Account A to equal the cost of Account B. What is that cost?

c.35

step-by-step explanation:

8+13=21

21+8=29

29+6=35

the answer is  

a.

4,624π mm2

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