An endangered population is declining by 7% per year. There are initially 824 animals present.
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A: Write a formula that gives the number A of animals remaining after t years.
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B: What is the percentage decrease over any 6-year period?
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C: Make a graph that shows the population level over the first 20 years.
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D: How long will it take for the population to decline by 21%?
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Round your answers to two decimal places if necessary.
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What will be an ideal response?
B: 35.3%
C:
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D: 3.25 years
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How would you find the area of a circle, given the area of the sector with radius 30 feet, and central angle 120?? ??
A.
120? is 1/4 of a circle's revolution; Therefore, the area of the circle is 4 times the area of the sector.
B.
?120? is 1/3 of a circle's revolution; Therefore, the area of the circle is 3 times the area of the sector.
C.
?120? is 1/4 of 180?; Therefore, the area of the circle is 4 times the area of the sector.
D.
?The area of the circle is: 
.
E.
?b and d are correct.
Make the indicated conversion within units of time.Convert 192 hours to days.
A. 96 days B. 56 days C. 64 days D. 8 days
Provide an appropriate response.Write 0.376 as a fraction in simplest form.
A. 
B. 
C. 
D. 
Solve the problem.Find the dimensions of a rectangular enclosure with perimeter 38 yd and area 70 yd2.
A. 6 yd by 14 yd B. 6 yd by 13 yd C. 5 yd by 13 yd D. 5 yd by 14 yd