Simplify the rational expression.
A. - 
B. - 
C. - 
D. 
Answer: C
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Solve the problem.A person standing close to the edge on top of a 272-foot building throws a baseball vertically upward. The quadratic function 
models the ball's height above the ground, s(t), in feet, t seconds after it was thrown. After how many seconds does the ball reach its maximum height? Round to the nearest tenth of a second if necessary.
A. 6.6 seconds B. 1.5 seconds C. 2 seconds D. 336 seconds
Use a calculator or the square root table to approximate the square root to the nearest thousandth.- 
A. -2.454 B. -2.449 C. -6.000 D. -2.446
Solve.Jack's checking account was overdrawn by $68. He deposited $45 into his account. What is his new balance?
A. $113 B. $23 C. -$113 D. -$23
Simplify.2
- (0.45)(6
)
A. -0.625 B. -0.85 C. 5.25 D. -0.75