Determine whether the given sequence is arithmetic, geometric, or neither. If the sequence is arithmetic, find the common difference; if it is geometric, find the common ratio.
A. Geometric; r = 
B. Geometric; r = 
C. Arithmetic; d = 
D. Neither
Answer: A
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Find a formula for the nth term of the arithmetic sequence whose first term a and common difference d are given.a = -9; d = 
A. an = 
n + 9
B. an = 
n - 
C. an = 
n - 9
D. an = -9n + 
Find the quotient. Simplify.(-12) ÷ (-1)
A. -1 B. 12 C. 1 D. -12
Decide whether the statement is an example of the commutative, associative, identity, inverse, or distributive property.7 + (-7) = 0
A. Associative B. Commutative C. Inverse D. Identity
Determine whether the equation 6(x + 5) - 9x = 6x + 5 is an identity or a conditional equation. If conditional, indicate the condition. ?
A. conditional with 
satisfying the equation
B. conditional with x = 0 satisfying the equation
C. conditional with 
satisfying the equation
D. conditional with no solution
E. identity