Use I = Prt for simple interest to find the indicated quantity.P = $3000; t = 90 days; I = $105. Find r. (Use 360 days in a year.)
A. 3.5%
B. 14.0%
C. 9.7%
D. 14.2%
Answer: B
Mathematics
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Solve.
= 3 + 
A. 5, 8 B. -1 C. -5, -8 D. No solution
Mathematics
A doctor orders tetracycline elixir qid for a child weighing 60 lb at a dosage of 8 mg/kg/day in equally divided doses. How many mg would one dose contain?
A. 54 mg/dose B. 108 mg/dose C. 216 mg/dose D. 72 mg/dose
Mathematics
Solve the problem.A merchant has coffee worth $30 a pound that she wishes to mix with 90 pounds of coffee worth $90 a pound to get a mixture that can be sold for $40 a pound. How many pounds of the $30 coffee should be used?
A. 540 lb B. 225 lb C. 270 lb D. 450 lb
Mathematics
Change the mixed number to an improper fraction.12
A. 
B. 
C. 180
D. 27
Mathematics