Solve the problem.A rock falls from a tower that is 320 feet high. As it is falling, its height is given by the formula 
How many seconds will it take for the rock to hit the ground 
Round to the nearest tenth, if necessary.
A. 4.5 sec
B. 17.4 sec
C. 6400 sec
D. 17.9 sec
Answer: A
Mathematics
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?Which of the following are not divisible by 9? ?
A. ?81 B. ?534,924 C. ?6,516 D. ?33,321 E. ?None of the above.
Mathematics
Solve the following system of equations by graphing. Write the solution as an ordered pair or state that the system has no solution or infinitely many solutions.
A. no solution B. (1, -5) C. (1, 5) D. (-5, 1)
Mathematics
Add or subtract as indicated.
+ 
A. 2
B. 1
C. 
D. 
Mathematics
Solve the problem.Sam and Chad are ticket-sellers at their class play. Sam is selling student tickets for $2.00 each, and Chad selling adult tickets for $5.50 each. If their total income for 24 tickets was $83.00, how many tickets did Sam sell?
A. 10 tickets B. 15 tickets C. 14 tickets D. 16 tickets
Mathematics