Hi, just another gay person sliding in and dropping 50 points for y'all

An arrow is shot vertically upward at a rate of 180ft/s. use the projectile formula h=−16t2+v0t to determine at what time(s), in seconds, the arrow is at a height of 420ft. round your answer(s) to the nearest tenth of a second.

Factor -8x3-2x2-12x-3 by grouping what is the resulting expression?

Find the area of an equilateral triangle with a side of 6 inches