1st blank: 2x
2nd blank: 4x
3rd blank: 8
4th blank: 16
5th blank: 4
The answer would be the second one, you can immediately cross off the first one and 3rd one, 2 x 200 = 400 - 300 = 100 :)
A rock climber's elevation above sea level changed −82 1/2 feet in 2 1/4 minutes as she descended.
so the the climber's average change in elevation per minute was:
x = -82 1/2 / 2 1/4x = (-165/2) / (9/4)x = (-165/2) x (4/9)x = -18 feet per minute is his change in elevation
90 feet of wire because 3 squared is 9 and 4 squared is 16 so 16+9=25 and the square root of 25 is 5 and 5*3=15 so that is 15 feet for one tree so 15*6=90
