Find the best buy (based on cost per unit).Brand A: 40 oz for $9.20Brand B: 35 oz for $7.70
A. Brand A
B. Brand B
C. Equal value
D. Not enough information
Answer: B
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Match the equation with the surface it defines.
+ 
= 
A. Figure 4 B. Figure 3 C. Figure 2 D. Figure 1
Solve the system of equations.
A. {(1, 7, 8)} B. {(-1, 2, 8)} C. {(1, 8, 7)} D. {(-1, 8, 2)}
Solve the following problem involving a quadratic equation. Round to the nearest tenth if necessary.A ball is thrown downward from a window in a tall building. Its position at time t in seconds is 
where s is in feet. How long will it take the ball to fall 203 feet?
A. After about 7.3 seconds, the ball will have fallen 203 feet. B. After about 2.7 seconds, the ball will have fallen 203 feet. C. After about 3.6 seconds, the ball will have fallen 203 feet. D. After about 2.5 seconds, the ball will have fallen 203 feet.
Find the sum.63.09 + 2 + 84.73 + 43.129
A. 193.949 B. 192.959 C. 192.949 D. 193.049