ASAP NEED HELP FAST PLEEASE

G(x) = 2 sin(2x - π) + 4. using complete sentences, explain how to find the minimum value for the function.

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?

Jonathan can type 20 documents in 40 minutes ,and susan can type it in 30 minutes and jack can type it in 24 minutes working together ,how much time will it is take them type the same document