Solve the problem.The amount of gas that a helicopter uses is directly proportional to the number of hours spent flying. The helicopter flies for 3 hours and uses 18 gallons of fuel. Find the number of gallons of fuel that the helicopter uses to fly for 4 hours.
A. 12 gal
B. 30 gal
C. 28 gal
D. 24 gal
Answer: D
Mathematics
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Determine whether the given value is a solution to the equation.x + 12 = -8, x = -12
A. Yes B. No
Mathematics
Solve the compound inequality. Express the solution using interval notation. Graph the solution set.0 ? 
< 3
A. 
B. 
C. 
D. 
Mathematics
Solve the problem. Round to the nearest dollar if needed.To save for retirement, you decide to deposit $2500 into an IRA at the end of each year for the next 35 years. If the interest rate is 9% per year compounded annually, find the value of the IRA after 35 years.
A. $48,535 B. $23,272,500 C. $539,277 D. $492,456
Mathematics
Perform the indicated operation. Simplify if possible.
+ 
A. 4m + 1
B. 
C. 
D. 
Mathematics