Solve the problem.A freight train leaves a station traveling at 32 km/h. Two hours later, a passenger train leaves the same station traveling in the same direction at 52 km/h. How long does it takes the passenger train to catch up to the freight train?
A. 2.2 hr
B. 3.2 hr
C. 4.2 hr
D. 5.2 hr
Answer: B
Mathematics
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Solve the problem.A 6-pound puppy is gaining weight at a rate of 
lb per week. How much more time will it take for the puppy's weight to exceed 22
lb?
A. more than 25 weeks
B. more than 43 weeks
C. more than 12
week(s)
D. more than 26 weeks
Mathematics
Solve the system.- 
+ 
= 52 
+ 
= 36
A. {(8, 3)} B. {(3, 8)} C. {(30, 80)} D. {(80, 30)}
Mathematics
Use the quadratic formula to solve the quadratic equation.5x2 = 3x - 3
A. - 
± 
B. no real solution
C. 
± 
D. all real numbers
Mathematics
Find the domain of the function.f(x) = 
A. (-?, ?) B. (-?, 0) ? (0, ?) C. (-?, -5) ? (-5, ?) D. (-?, -5)
Mathematics