Which of the following expressions is equal to -4x^2-36? a. (-4x-12i)(x+3) b. (-4x+9i)(x-4i) c. (-4x+12i)(x+3i) d. (-4x-9i)(x-4i)

Asap (explain how you got it as well for brainliest)i tried 1: 2 and 2: 3 and they were wrong.picture of figure: in the figure below, the segment is parallel to one side of the triangle. the ratio of 12 to y is1: 21: 31: 42: 3

The triangles are similar. what is the value of x? show your work.

An elevator travels 310 feet in 10 seconds. at that speed, how far can't his elevator travel in 12 seconds?