Solution:
To solve the expression in the image, you should follow the order of operations, which is often remembered by the acronym PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction).The expression is:90 ÷ 2 + 4According to the order of operations, division comes before addition, so you first need to divide 90 by 2:90 ÷ 2 = 45Next, you add 4 to the result:45 + 4 = 49So, the solution to the expression is 49.