HELP PLEASE!

3.) x=3

4.) x=11

Step-by-step explanation:

3.) 80= 27x-1

x=3

4.) 5x+5+9x+21= 180

14x+26= 180

x=11

idk

step-by-step explanation:

isaiah walks 3 miles due north, turns and then 5 miles due east. how far is he from his starting point?

a^2 + b^2 = c^2

let c = distance from starting point.

(3)^2 + (5)^2 = c^2

9 + 25 = c^2

34 = c^2

sqrt{34} = sqrt{c^2}

sqrt{34} = c