Solve the problem.If a ball is thrown upward at 64 feet per second from the top of a building that is 120 feet high, the height of the ball can be modeled by 
feet, where t is the number of seconds after the ball is thrown. After how many seconds does the ball reach its maximum height?
A. 3.8 sec
B. 4 sec
C. 1 sec
D. 2 sec
Answer: D
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Find the acute angle, in degrees, between the lines.3x - y = 8 and 2x + y = 16
A. 30° B. 75° C. 45° D. 60°
Find the required ratio.The atomic mass of an atom of carbon is defined to be 12 u. The ratio of the atomic mass of an atom of bromine to that of an atom of carbon is 
. What is the atomic mass of an atom of oxygen? (The symbol u represents the unified atomic mass unit, where 1 u = 1.66 × 10-27 kg.)
A. 40 u B. 80 u C. 160 u D. 82 u
Solve the problem.The following table shows the per capita fish consumption, in pounds, in the Virgin Islands in 3 recent years. 
Fit a quadratic function f(x) = ax2 + bx + c to the data. Using this function, what would you predict the per capita fish consumption to be in 2023?
A. 202.1 pounds B. 204.4 pounds C. 205.9 pounds D. 204.8 pounds
Solve the equation.5r + 9 = 59
A. 2 B. 49 C. 45 D. 10