Solve the problem.A construction worker tosses a scrap piece of lumber from the roof of a building. How long does it take the piece of lumber to reach the ground 121 feet below? Use the formula 
where d is the distance (in feet) a freely falling object falls in t seconds. Give your answer as a fraction.
A. 
sec
B. 
sec
C. 
sec
D. 
sec
Answer: A
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As a certain animal grows, its length increases toward a maximum of 17 inches. At age t years its length is 
measured in inches. The difference 
between the maximum length and the current length is shown in the table below.
t 0 1 2 3 D 12.00 10.68 9.51 8.46? A: Make a table of successive ratios to show that D can be modeled by an exponential function of time. Round your answer to two decimal places.B: Find an exponential model for the data. Round your answer to two decimal places.C: Plot the graph of the data points along with the exponential model. Include up to 10 years.D: Find a formula that gives the length L after t years. Round your answer to two decimal places. What will be an ideal response?
Answer the question.What does the digit 9 mean in the number 890,236?
A. 9 hundred thousands B. 9 thousands C. 9 ten thousands D. 9 hundreds
Write as a fraction or as a mixed number150%
A. 1
B. 15
C. 3
D. 
Find the missing values.
A. 32%, $207.90 B. 31%, $207.90 C. 3%, $207.90 D. 30%, $207.90