Solve the problem.A radioactive substance has a decay rate of 4.5% per day. What is its half-life?
A. 17.8 days
B. 15.4 days
C. 3.1 days
D. 0.15 days
Answer: B
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Use the Lucas sequence to answer the question.What is the 15th term of the Lucas sequence?
A. 843 B. 2,207 C. 1,364 D. 3,571
Use the formula B = P + Prt, which is used to calculate the balance in an account if simple interest is added to a principal P at an interest rate of r for t years.Suppose that an account earns 5.3% interest and after two years the balance is $7,178.00. Find the principal that was invested.
A. $8,029.08 B. $5,841.05 C. $7,788.06 D. $6,490.05
Graph the exponential function.y = - 
x 
A. 
B. 
C. 
D. 
Provide an appropriate response.The amount of Social Security tax and Medicare tax withheld from a paycheck is not influenced by the number of dependents claimed by the employee.
A. True B. False