Solve the problem.How many different 3-letter codes are there if only the letters A, B, C, D, E, F, G, H, and I can be used and no letter can be used more than once?
A. 3
B. 84
C. 504
D. 729
Answer: C
Mathematics
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Find the real solutions, if any, of the equation. Use the quadratic formula.x2 + 5x + 5 = 0
A. 
B. 
C. 
D. 
Mathematics
Multiply.9x3y(xy2 + 5)
A. 9x + 5x3y B. 45x3y C. x4y3 + 45x3y D. 9x4y3 + 45x3y
Mathematics
Solve the problem.A pair of running shoes costs $80 and a pair of basketball shoes costs 
Find the total cost for both pairs of shoes.
A. $120 B. $40 C. $59 D. $116
Mathematics
Find decimal notation.
A. 1.5
B. 1.59
C. 1.58
D. 1.5
Mathematics