Sonja's credit card has an apr of 21%, calculated on the previous monthly
balance, and a minimum payment of 2%, starting the month after the first
purchase. her credit card record for the last 7 months is shown in the table
below.
end of
month
principal
paid
previous
balance
$0.00
$700.00
5698.25
$696.50
5694.76
5693.03
$691.29
new
charges
$700.00
$0.00
$0.00
$0.00
payment
received
$0.00
$14.00
$13.97
$13.93
$13.90
$13.86
$13.83
finance
charges
$0.00
$12.25
$12. 22
$12.19
$12.16
$12.13
$12.10
$0.00
$1.75
$1.75
$1.74
$1.74
$1.73
$1.73
new
balance
$700.00
$698.25
$696.50
$694.76
$693.03
$691 29
$689.57
$0.00
$0.00
50.00
about what percentage of sonja's payments so far have gone to paying
interest?

Your company withheld $4,463 from your paycheck for taxes. you received a $713 tax refund. select the best answer round to the nearest 100 to estimate how much you paid in taxes.

Amachine that produces a special type of transistor (a component of computers) has a 2% defective rate. the production is considered a random process where each transistor is independent of the others. (a) what is the probability that the 10th transistor produced is the first with a defect? (b) what is the probability that the machine produces no defective transistors in a batch of 100? (c) on average, how many transistors would you expect to be produced before the first with a defect? what is the standard deviation? (d) another machine that also produces transistors has a 5% defective rate where each transistor is produced independent of the others. on average how many transistors would you expect to be produced with this machine before the first with a defect? what is the standard deviation? (e) based on your answers to parts (c) and (d), how does increasing the probability of an event a↵ect the mean and standard deviation of the wait time until success?

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.