If two angles are complementary, the sum of their measures is 90 degrees. Call one of the angles x. This means that its complement is 90 - x degrees. But the difference in their measures is 12 degrees.
Easy remember (x^m)(x^n)=x^(m+n) basically add exponens when the base is same (13^-11)(13^16)(13^-3)(13^4)(13^-5)= 13^(-11+16-3+4-5)= 13^(5-4)= 13^1=13
You multiply 42.75 x 4 and get 171. Then you add 171+52.45=223.45 and then you subtract 223.45-18=205.45 and then you multiply 223.45 x .3333 = 68.3265 or 68.33 (rounded)
