The sum(9) of half of the first number(1/2a) and one third of the second number(+1/3b)
That is correct
We know that
in the right triangle
<span>sinθ=opposite side/hypotenuse
</span><span>cosθ=adjacent side/hypotenuse
</span><span>tanθ=opposite side/adjacent side
in this problem
opposite side angle </span>θ=8
adjacent side angle <span>θ=15
hypotenuse=17
so
</span>sinθ=8/17
cosθ=15/17
tanθ=8/15
You will subtract 12 from 260 and get 248 then you will divide 248 by 8 and get 31 dollars spent per book.
The last 2 y”s are identical
