Use PEMDAS, which stands for Parenthesis, Exponents, Multiply, Divide, Add, and Subtract.
First multiply, so 86 x 450 = 38700, and then divide 47 divided by 10, which is 4.7, and then add 4.7 plus 38700, which would give you 38704.7
More context please! I hope you find the answers you need:)
The correct equation to use is A. n+d=27 0.05n+0.10d=1.95
