To solve 1+5x8, we need to follow the order of operations, which is PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction). In this case, we have multiplication and addition, so we first multiply 5 and 8, and then add 1 to the result.
1 + 5 x 8
= 1 + 40 (since 5 x 8 = 40)
= 41