Exercise 8 & 9 please thank u so muchhh

step-by-step explanation:

5+2x=a

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it would take 5 hours i think idk i'm not that good at math.can you me with my questions i need asap.

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