Answer:
The first step in simplifying this expression is to evaluate the terms within the parenthesis - starting with the multiplication and following the rules for operations in math.
The answer is A, you can tell because if you multiply 4 by the numbers inside the parentheses you’ll get =12+24..hope that helped :)
Step1) divide 15 by 5 and you will get 3.
Step2) to check your answer you will have to times 3 by 5 and you will get 15.
Answer: Mark was going a speed of 3 meters per second.