Susan should follow PEMDAS,
Parentheses
Exponents
Multiplication
Division
Addition
Subtraction,
So, the first step should be, to solve the equation in the parentheses.
I hope this helps!
Force causes all motion, and the larger the mass of an object the stronger the force needs to be to accelerate the object.
For the first one the answer is B. and the second one is D.
