Find the product.(3x - 9)(3x + 9)
A. 3x2 + 54x - 81
B. 9x2 + 54x - 81
C. 9x2- 54x - 81
D. 9x2 - 81
Answer: D
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Write the answer to the problem as an algebraic expression.A theater ticket for adults is a dollars and the price of a child's ticket is c dollars. If 13 adults and 40 children attend the theater one night, how much money did the theater make?
A. 13a + 40c dollars B. 40a + 13c dollars C. 520ac dollars D. 13c + ca dollars
Provide an appropriate response.Solve: 
= 2
A. x = -4, x = 8 B. x = 4, x = 8 C. x =-4, x = -8 D. x = -4, x = -8
Verify the identity.sin 
= 
(cos ? + sin ?)
What will be an ideal response?
Solve the problem.If money is invested for 3 years with interest compounded annually, the future value of the investment varies directly as the cube of 1 + r, where r is the interest rate. If the future value of the investment is $9317.00 when the rate is 10%, what rate gives a future value of $8575.30? Round to the nearest whole percent.
A. 8% B. 6% C. 7% D. 9%