Brainliest + points need !

at greenbrier bank, checking account customers earn 0.8% interest a month on their account balances, pay a $0.10 service fee per check, and pay a monthly $2.00 financial charge.

calculate the income earned on the checking account for a customer who writes 21 checks and maintains a minimum balance of $1,210.

a.
$4.27

b.
$5.58

c.
$6.42

d.
$7.35

B. $5.58

Step-by-step explanation:

In order to find the amount of income earned, we can set up an equation using a variable for the number of checks and the minimum balance:

Income earned = (.008)b - $0.10c - $2.00, where b = the minimum balance and c = the number of checks.

Since the customer writes 21 checks, c = 21 and maintains a minimum balance of $1,210, b = 1210, we can fill in the variables and solve the equation:

Income earned = (.008)(1210) - (0.10)(21) - 2 or 9.69 - 2.10 - 2  = $5.58

0.02

step-by-step explanation:

time of 9 192 631 770 periods of the radiation corresponding to the transition between the 2 hyperfine levels of the ground state of the caesium 133 atom at 0 k (but other seconds are sometimes used in astronomy)