Solve the problem.Last year, 340 million music CDs were purchased by 112 million households in the United States. On average, how many CDs were purchased in each household?
A. 170 CDs
B. 340 CDs
C. 3.4 CDs
D. 3 CDs
Answer: D
Mathematics
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Use truth tables to test the validity of the argument.p ? q
? ~p
A. Invalid B. Valid
Mathematics
Solve the problem.A bacteria colony doubles in 4 hr. How long does it take the colony to triple? Use N = N0 2t/T, where N0 is the initial number of bacteria and T is the time in hours it takes the colony to double. (Round to the nearest hundredth, as necessary.)
A. 12 hr B. 1.62 hr C. 6 hr D. 6.34 hr
Mathematics
Evaluate the expression.-91
A. 0 B. 9 C. 1 D. -9
Mathematics
Simplify.62 - 5(3) + 28 ÷ 4
A. 10
B. 28
C. 88
D. 
Mathematics