Solve the problem.Doctors predict that by administering a vaccine, the number of new cases of a certain childhood disease will decrease by half each year. If 800 people were afflicted with the disease in 2000, estimate the number of new cases in 2005. (Round to the nearest whole number.)
A. 50 new cases in 2005
B. 25 new cases in 2005
C. 100 new cases in 2005
D. 13 new cases in 2005
Answer: B
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Use the graph of a known basic function and a combination of horizontal shifts, reflections, and vertical shifts to sketch the function.f(x) = 
A. 
B. 
C. 
D. 
If possible, evaluate the expression by hand. If not, approximate the answer to the nearest hundredth.(-7)4
A. -2401 B. 28 C. 2401 D. -28
Solve.A dairy produces 
of milk each day. There are 
in a gallon. How many gallons of milk are produced each day?
A. 575,000 gal B. 57,500 gal C. 920,000 gal D. 5,750 gal
The sequence is defined recursively. Write the first four terms.a1 = 
; an = 
A. a1 = 
, a2 = 
, a3 = 
, a4 = 
B. a1 = 
, a2 = 
, a3 = 
, a4 = 
C. a1 = 
, a2 = 3, a3 = 3
, a4 = 9
D. a1 = 
, a2 = 3
, a3 = 9
, a4 = 27