Find the solution set of the system.
?
?
A. ?
B. ?
C. ?
D. ?
Answer: D
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Solve the problem.Find the slope of the tangent to the curve of the intersection of the surface 
and the plane y = 1 at the point 
A. 
B. - 
C. - 
D. 
Use the at least once rule to find the indicated probability.The probability that a certain region in Mexico will be hit by a hurricane in any given year is 0.07. What is the probability that the region will be hit by at least one hurricane in the next 6 years?
A. 0.647 B. 0.930 C. 0.353 D. 0.049
Solve the inequality, then graph the solution.8t + 12 ? 7t + 21
A. (-?, 8)
B. (-?, 9]
C. [9, ?)
D. (8, ?)
Solve the application problem. If no interest rate is given, assume 
% interest compounded daily. Round to the nearest cent.
On October 1, The Bakery opened a savings account with a deposit of $15,100. A withdrawal of $7500 was made 15 days later and another withdrawal of $400 was made 8 days before January 1. Find the balance on January 1.
A. $7,277.30 B. $7,277.89 C. $7,277.82 D. $7,277.14