Single persons - weekly payroll period
if the wages are
and the number of withholding allowances claimed is
at least but less than
3
$500
$310
$32
510
33
520
35
541
520
530
530
550
540
550
39
use figure 2.5. rahim obert is empl
hours. he is single and claims alle
medical insurance. including feder
accounts receivable department. he earns $15.50 per hour. this pay period he worked 35
the state tax is 3% of gross earnings and the local tax is 1.5% of gross earnings, obert pays 550 for
what is the total amount of all of his deductions?
social security and m
a
$281.29
$126.87
$162.93
$104.79

The biologist has a second culture to examine. she knows that the population of the culture doubles every 15 minutes. after 1 hour and 15 minutes, her assistant found that 80,000 bacteria were present. a) what was the size of the initial population? b) predict the size of the culture at t=3 hours. what was the size of the population at 40 minutes? explain and justify your answers. c) create a graph of the population as a function of time. find an equation that can be used to predict the size of the population at any time t. d) examine the rate at which the bacteria culture is growing. how fast is the culture growing after 1 hour? after 1.5 hours? after 2 hours? use a time interval of h = 0.01 hours to estimate these rates. interpret these rates in terms of the context of the problem situation. how do these three rates compare?