Five times a number plus six times a number.

5x +6y

Step-by-step explanation:

let x and y be numbers

5 times a number=5x

6 times a number = 6y

now,

ans=5x+6y

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

answer: they are supplementary angles

step-by-step explanation: 161+19=180. supplementary angles equal 180 degrees