P E MD AS rule (Do the following in order)
1.parentheses 2.exponent 3. multiplication/ division 4. Addition/Subtraction
Since there are no parentheses and exponent you do the multiplication and division first (whichever comes first).
5x5 = 25 and 10/5 =2 making the equation 25+5-2
You can then add or subtract which ever comes first. 25+5=30 30-2 = 28
The answer is 28.