Solve the problem. Round to the nearest cent.The list price of 2 dozen blank cassettes is $53. Find the dealer's cost per cassette if a series discount of 
is offered.
A. $1.77
B. $42.80
C. $0.43
D. $1.78
Answer: D
Mathematics
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Find the cardinal number of the set.Given:n(U) = 60 n(A) = 30 n(B) = 16 n(A ? B) = 6Find n(A ? B)'.
A. 46 B. 20 C. 40 D. 14
Mathematics
Write the inequality in interval notation.x ? 2 or x ? 6
A. (-?,2] ? [6,?) B. (6,-2) C. (6,2) D. [-6,-2]
Mathematics
Determine the place value of the digit 3 in the whole number.34,770,091
A. ten millions B. millions C. tens D. ten thousands
Mathematics
Write the expression in the form bi, where b is a real number.
A. 3i
B. -3
C. -3i
D. 3
Mathematics