Simplify.30 + 21 ? 28
A. 658
B. 1428
C. 618
D. 79
Answer: C
Mathematics
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Find the probability.A bag contains 17 balls numbered 1 through 17. What is the probability of selecting a ball that has an even number when one ball is drawn from the bag?
A. 
B. 8
C. 
D. 
Mathematics
Solve the problem.A company makes jewelry boxes. The boxes are 6 in. by 3 in. by 10 in. They are made out of wood and covered with fabric. How many square inches of fabric are needed to cover the jewelry box?
A. 212 in.2 B. 108 in.2 C. 222 in.2 D. 216 in.2
Mathematics
Find the exact value of the trigonometric expression without the use of a calculator.If tan ? = 
, ? < ? < 
and cos ? = - 
, 
< ? < ?, find the exact value of sin (? + ?).
A. 
B. 
C. 
D. 
Mathematics
Solve the exponential equation.22x = 216.8
A. 2 B. 8.4 C. 16.8 D. -8.4
Mathematics