Factor by grouping.15x2 + 18x + 20x + 24
A. (3x + 4)(5x + 6)
B. (15x - 4)(x - 6)
C. (15x + 4)(x + 6)
D. (3x - 4)(5x - 6)
Answer: A
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Solve the problem by using three variables.A croissant, a cup of coffee, and a fruit bowl from Kelley's Coffee Cart cost a total of $5.50, and a croissant costs twice as much as a cup of coffee. Kelley posts a notice announcing that, effective next week, the price of a croissant will go up 10% and the price of coffee will go up 10%. After the increase, the total price of the purchase will be $5.73. Find the cost of each item before the increase.
A. A fruit bowl costs $3.25, a croissant costs $1.50, and a cup of coffee costs $0.75. B. A fruit bowl costs $3.25, a croissant costs $0.83, and a cup of coffee costs $1.65. C. A fruit bowl costs $3.25, a croissant costs $1.65, and a cup of coffee costs $0.83. D. The prices cannot be determined from the given information.
Solve the equation.-8.9q + 1.4 = -37.6 - 1.1q
A. {4.5} B. {5} C. {-47} D. {4.4}
Factor the trinomial, if possible.x2 + 3xy - 18y2
A. (x - 6y)(x + y) B. (x + 6y)(x - 3y) C. (x - y)(x + 3y) D. (x - 6y)(x + 3y)
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