9.) Which line below is parallel to: y = 9x - 7 * y = 9x + 2
y = -1/9x - 1
y = -9x + 7
y = 2x - 7

what kind math is it?

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

i honestly dont know