Solve the problem.A sample of 600 grams of radioactive substance decays according to the function 
where t is the time in years. How much of the substance will be left in the sample after 10 years? Round to the nearest whole gram.
A. 9 g
B. 449 g
C. 1 g
D. 0 g
Answer: B
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Find the exact value of the expression. Do not use a calculator.sec ?, if cos ? = 
and sin ? > 0
A. 2
B. - 2
C. 
D. 
Solve the application problem. If no interest rate is given, assume 
% interest compounded daily. Round to the nearest cent.
A publishing company deposited $200,000 in a 2-year time deposit earning 6% compounded daily with a Chicago bank as partial collateral for a loan. Find the compound amount and the interest earned.
A. Compound amount = $421,032.67; Interest = $1,032.67 B. Compound amount = $221,032.67; Interest = $21,032.67 C. Compound amount = $221,032.67; Interest = $121,032.67 D. Compound amount = $244,277.21; Interest = $21,032.67
Find the percent using a proportion. Round your answer to the nearest tenth if necessary.3.6 inches is what percent of 20 inches?
A. 5.6% B. 555.6% C. 18% D. 0.2%
Find the particular solution to the difference equation 
What will be an ideal response?