This is true. When ever you multiply by 10, you add a zero on, since 50x10=50 plus another zero it's 500. Whenever you divide by 10, you take a way a zero of move the decimal, so 500/10=50.
1/5( 1/2 + 1/3)
1/5 (3/6 + 2/6)
1/5(5/6)
5/30
1/6
Use pemdas (parenthesis, exponents, multiply/divide, add/subtract);
5.9(4) + 4³ + 3.86
5.9(4) + 64 + 3.86
23.6 + 64 + 3.86
The answer is C) 91.46