Solve the problem.The decay of 846 mg of an isotope is given by 
where t is time in years. Find the amount left after 55 years.
A. 149
B. 830
C. 298
D. 292
Answer: C
Mathematics
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Add or subtract, if possible. Assume that all variables represent non-negative values and be sure to simplify your answer.8
- 11
+ 5
A. 2
B. 2
C. 13
- 11
D. 13
- 11
Mathematics
Write the improper fraction and mixed number represented by the shading.
A. 
; 1
B. 
; 1
C. 
; 1
D. 
; 1
Mathematics
Solve the problem.A $122,000 trust is to be invested in bonds paying 8%, CDs paying 5%, and mortgages paying 9%. The bond and CD investment together must equal the mortgage investment. To earn a $9320 annual income from the investments, how much should the bank invest in bonds?
A. $24,000 B. $26,000 C. $35,000 D. $61,000
Mathematics
Multiply.
A. 63,039,328 B. 63,028,328 C. 63,029,428 D. 63,029,328
Mathematics