Which equation have the same value of x as 5/6 x 2/3 =9 select 3 options

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.

Solve: 3x+y=6 4x-2y=18 show all work !

The holiday party will cost $160 if 8 people attend.if there are 40 people who attend the party, how much will the holiday party cost