Solve the problem.A sample of 250 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. 0 grams
B. 1 gram
C. 9 grams
D. 180 grams
Answer: D
Mathematics
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Solve the quadratic equation.x2 + 4x + 4 = 11
A. 2 ± 
B. 9
C. -2 ± 
D. No real solutions
Mathematics
Solve the problem.On Monday, an investor bought 100 shares of stock. On Tuesday, the value of the shares went up 6%. How much did the investor pay for the 100 shares if he sold them Wednesday morning for $1325.00?
A. $1250.00 B. $1275.00 C. $1404.50 D. $1300.00
Mathematics
Rewrite the following fraction in two equivalent forms.
A. 
, 
B. 
, - 
C. 
, - 
D. 
, - 
Mathematics
Determine whether the value of 
is a solution of the inequality.
?
A. Yes B. No
Mathematics