Solve.How many 3-letter codes can be formed with the letters P, Q, R, S, T without repetition?
A. 180
B. 6
C. 60
D. 30
Answer: C
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Solve the problem.The sum of two numbers is 4. Three times the first number equals 4 times the second number. Find the two numbers.
A. 16 and 12
B. 4 and 12
C. - 
and - 
D. 
and 
Divide and, if possible, simplify. Assume all variables represent positive real numbers.
A. 2a3z7
B. 2a15z35
C. 2a10z30 
D. 2a15z35 
Solve the problem.You get internet service for a flat rate of $15.95 per month regardless of the number of minutes that you spend online. The table shows an example of some cost data.
Do these data represent a linear function?
A. Yes B. No
Solve the problem.A company wishes to manufacture a box with a volume of 40 cubic feet that is open on top and is twice as long as it is wide. Find the width of the box that can be produced using the minimum amount of material.
A. 6.4 ft B. 3.6 ft C. 3.2 ft D. 7.2 ft