Multiply. Simplify your answer.
× 
A. 
B. 
C. 
D. 
Answer: C
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Verify the identity.sin(? + ?) - sin(? - ?) = 2 cos ? sin ?
What will be an ideal response?
Fill in the blank with one of the words or phrases listed below.
The fraction 
is 
.
A. undefined B. proper fraction C. 0 D. prime factorization
Solve.A vendor has learned that, by pricing hot dogs at $1.00, sales will reach 119 hot dogs per day. Raising the price to $1.50 will cause the sales to fall to 95 hot dogs per day. Let y be the number of hot dogs the vendor sells at x dollars each. Write a linear equation that models the number of hot dogs sold per day when the price is x dollars each.
A. y = 48x + 71
B. y = -48x + 167
C. y = -48x - 167
D. y = - 
x + 
Solve the problem.Annica owes $476.98 on her charge card. She returns for credit items costing $24.09 and $41.27. She makes a purchase for $23.42 and additional purchases of $33.80, $172.62, and $177.98. She then makes a payment of $540.35. Find the amount she now owes.
A. $674.87 B. $409.81 C. $544.15 D. $279.09