Find an exponential model for the following data set. Round your answer to two decimal places.
t 0 3 6 9 y 52.07 26.66 13.65 6.99?
A. ?
B. 
C. ?
D. ?
Answer: B
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A bad investment loses 5% of its value each year. The initial investment was $2,883. ? A: Find a formula that gives the value V, in dollars, of the investment after ?t years. ? B: What is the value of the investment after 7 years? ? C: When will the investment decline to half its original value? ? Round your answers to two decimal places if necessary. ?
What will be an ideal response?
Subtract. Check by adding. 
A. 107,284 B. 42,716 C. 57,284 D. 106,046
Solve.The pitch of a screw is the distance between threads. With each complete rotation of the screw, it goes in or out a distance equal to its pitch. How far will a screw with a pitch of 
in. go into a piece of wood when it is turned 10 complete rotations clockwise?
A. 
in.
B. 
in.
C. 
in.
D. 
in.
Perform the indicated operations and simplify the result. Leave the answer in factored form.
? 
A. 
B. 
C. 
D. 