Write a formula for the nth term of the arithmetic sequence. Do not use a recursion formula.2, -3, -8, -13, -18, . . .
A. an = -5n - 7
B. an = -12 - 5n
C. an = -5n + 7
D. an = 5n - 7
Answer: C
Mathematics
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, 
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Simplify the expression. First use the distributive property to remove any parentheses.
(6x + 5) - 
(4x - 9)
A. - 
B. 
C. 
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Find the area of the geometric figure.
Use 
for ?.
A. 28
sq yd
B. 56
sq yd
C. 254
sq yd
D. 509
sq yd
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Solve the inequality.In order for a chemical reaction to take place, the Fahrenheit temperature of the reagents must be at least 
. Find the Celsius temperatures at which the reaction may occur. 
A. C ? 78.28° B. C ? 343.22° C. C < 343.22° D. C ? 78.28°
Mathematics