A^2 + B^2 = C^2.
so 49 + 576 = C^2
625 = C^2
Now find the square root of 625.
25 = C (in your case r)
If 60% of the painters is 12, then 10% of the painters is 2, and therefore there are 20 painters.
By “i get 172.37” is that adding to the 182 or how much you have left after buying those things.
I’ll answer this later but use an equation 180 degrees
7(5 + x) = -14
7 x 5 = 35
So 35+7x=-14 divide through by 7 first
5+x=-2
X=-7
