Find the nth term and the indicated term of the arithmetic sequence whose initial term, a, and common difference, d, are given.a = 7; d = 5an = ?; a14 = ?
A. an = 2 + 5n; a14 = 72
B. an = 2 + 5n; a14 = 47
C. an = 2 - 5n; a14 = 72
D. an = 7 + 5n; a14 = 72
Answer: A
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Add or subtract. Assume all variables represent positive real numbers.3
+ 8
A. 11
B. -43
C. 37
D. 43
Write fraction as a percent. If necessary, round the percentage to the nearest tenth.
A. 61.3% B. 70% C. 4.3% D. 42.9%
Solve the problem.A vendor has learned that, by pricing pretzels at $1.50, sales will reach 109 pretzels per day. Raising the price to $2.50 will cause the sales to fall to 69 pretzels per day. Let y be the number of pretzels the vendor sells at x dollars each. Write a linear equation that models the number of pretzels sold per day (y) when the price is x dollars each.
A. y = 40x + 49
B. y = -40x + 169
C. y = - 
x + 
D. y = -40x - 169
Find A?B, the union of sets A and B.
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