Can anyone help me with these i’m not really good at them

Given abcd ac=38 and ae=3x+4 find the value of x

What is the range of the function? f(x)=-2|x+1|? a. all real numbers. b. all real numbers less than or equal to 0. c. all real numbers less than or equal to 1. d. all real numbers greater than or equal to 1

Find the vertex for the parabola given by the function ƒ(x) = −3x2 − 6x.