Gavin starts with x marbles. If Gavin gives 3 of his marbles to Cindy, then Cindy will have twice as many marbles as Gavin has after the exchange. If y is the number of marbles that Cindy has after the exchange, which of the following equations is true? A) y=2(x +3)
B) y=2(x + 1)
C) y=2(x - 1)
D) y=2(x - 3)

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

The vertex of this parabola is at (-2,-3). when the x-value is -1, the y-value is -5. what is the coefficient of the squared expression in the parabola's equation?

What is the area of this parallelogram? 434.28 cm2 263.67 cm2 527.34 cm2 217.14 cm2