Solve for x and y in the two-compartment model.
Mathematics
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Add.-3.7 + (-19.2)
A. -15.5 B. -22.9 C. 15.5 D. 22.9
Mathematics
Simplify the rate to a unit rate and write the unit rate in words.
A. 
; 4.90 tickets per dollar
B. 
; $93.60 per ticket
C. 
; $4.90 per ticket
D. 
; $24 per ticket
Mathematics
Solve the problem.An object is launched vertically in the air at 40 feet per second from a platform 50 feet above the ground. The height of the object above the ground (in feet) t seconds after launch is given by 
How long does it take the object to reach its maximum height? What is the object's maximum height?
A. 2.5 sec; 75 ft B. 1.25 sec; 50 ft C. 2.5 sec; 50 ft D. 1.25 sec; 75 ft
Mathematics
Find the real solutions of the equation.
= -2
A. {32} B. {-33} C. {33} D. {-32}
Mathematics