The loudness L of a sound (measured in decibels, dB) is inversely proportional to the square of the distance d from the source of the sound. A person who is 10 ft from a lawn mower experiences a sound level of 70 dB. How loud is the lawn mower when the person is 25 ft away?
What will be an ideal response?
11.2 dB
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Use a day counting table to find the exact number of days from the first date to the second date. Assume the year is not a leap year unless otherwise indicated.August 25 to March 8 (the year of the March date is not a leap year)
A. 171 B. 237 C. 195 D. 170
Make the following conversion between the U.S. and metric systems.4 m2 = 
ft2
A. 13.2 ft2 B. 12 ft2 C. 43.0 ft2 D. 36 ft2
In a certain city there is a river running through the middle of the city. There are three islands and seven bridges as shown in the figure below.
A graph that appropriately models this situation would have
A. 7 vertices and 7 edges. B. 5 vertices and 3 edges. C. 5 vertices and 7 edges. D. 3 vertices and 7 edges. E. none of above
Use the percentage method of withholding, a FICA rate of 6.2%, a Medicare rate of 1.45%, an SDI rate of 1%, and a state withholding tax of 3.4%. One withholding allowance is $73.08 when paid weekly.
Larry Calanan has earnings of $510 in a week. He is single and claims 2 withholding allowances. His deductions include FICA, Medicare, federal withholding, state disability insurance, state withholding, union dues of $15, and charitable contributions of $21. Find his net pay.
A. $361.54 B. $389.85 C. $408.51 D. $372.51