An artist is arranging tiles in rows to decorate a wall. each new row has two fewer tiles in the row below it
. if the first row has 23 tiles how many tiles will be in the seventh row

the answer is 99.

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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