Evaluate the expression x - y for the given values of the variables.x = 5, y = 13
A. 18
B. -18
C. 8
D. -8
Answer: D
Mathematics
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Calculate the number of distinguishable strings that can be formed with the stated letters.1 c and 6 d's
A. 4 B. 6 C. 5 D. 7
Mathematics
Solve the problem.If the price charged for a bolt is p cents, then x thousand bolts will be sold in a certain hardware store, where 
How many bolts must be sold to maximize revenue?
A. 1305 bolts B. 2610 thousand bolts C. 2610 bolts D. 1305 thousand bolts
Mathematics
Simplify the expression.5 - (7 - 2)3
A. -120 B. 130 C. -20 D. 30
Mathematics
Solve the problem.Check whether the sequence is arithmetic. If the sequence is arithmetic, find the common difference d.4, 12, 36, 108, 972, . . .
A. arithmetic; d = 8 B. not arithmetic
Mathematics