Vertical angles equal each other so (13x-85) = 97
we can solve for x:
13x-85 = 97
add 85 to each side:
13x = 182
divide both sides by 13
x = 182 / 13
x = 14
z and 97 are supplementary angles and need to equal 180 degrees
z = 180 - 97 = 83
160/10 =16 dollars per hour
Use the way that kids use i.e trial and error method .
Solution:-
The set given by

Lets understand
- See the first term any natural value will make it natural .
Come to 2nd one.
- n should be a multiple of 8 to make it whole.
Come to third one
- n should be a number which makes the sum a perfect square by which we get a natural no.We have to solve it w.r.t to 2nd one
Lets think
Nearest squares to 225 are 196 and 289
We can't take 196 as we have to take a positive one other wise it will come in terms of i.
Take 289


Its divisible by 8 .
Rewrite the set



Hence n=64