Solve by factoring and using the principle of zero products.x2 - x = 56
A. -7, -8
B. 7, 8
C. -7, 8
D. 1, 56
Answer: C
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Identify the unknown amount as the portion, rate, or base.2 is 30% of what number?
A. rate B. base C. portion
Solve the problem.Lin purchased shares of a stock for $9.57 per share forty years ago. Today the stock is worth $527.36 per share. Express to the nearest percent the ratio of what the stock is worth now to what the stock was worth when she purchased it.
A. 5511% B. 556% C. 1% D. 55%
Use the graph of y = f(x) to state the value of the requested quantity if it exists.
f(x)
A. 0 B. does not exist C. 1 D. 3
Use the properties of logarithms to rewrite the logarithm if possible. Assume that all variables represent positive real numbers.logn 
A. 
logn 4 + 
logn x - 
logn z
B. logn 4 + 2 logn x - 9 logn z
C. 
logn 4 - 
logn x - 
logn z
D. 
logn 4 + 
logn x + 
logn z