Solve for x using an equivalent exponential expression.The function f(x) = 300(0.5)x/50 models the amount in pounds of a particular radioactive material stored in a concrete vault, where x is the number of years since the material was put into the vault. Find the amount of radioactive material in the vault after 
Round to the nearest whole number.
A. 131 pounds
B. 180 pounds
C. 168 pounds
D. 125 pounds
Answer: A
Mathematics
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Evaluate.
2
A. 
B. 
C. 2
D. 
Mathematics
Solve the given equation without using a graphing calculator.-3x4 + 15x3 - 15x2 - 15x + 18 = 0
A. 1, 3, -3, 2 B. 1, 3, 2, -1 C. -1, -3, -2 D. 1, -1, 3, -3
Mathematics
Translate the sentence into an equation. Use x to represent the unknown number. The quotient of a number and 4 results in 10.
A. 
= 10
B. 4 - x = 10
C. 
= 10
D. 4x = 10
Mathematics
Solve the problem. Assume that the minimum payment on a credit card is the greater of $27 or 3% of the unpaid balance.Find the minimum payment on an unpaid balance of $769.52.
A. $230.86 B. $27.00 C. $23.09 D. $28.09
Mathematics