Answer:
C) Tom did not distribute to both terms in parentheses.
Step-by-step explanation:
Addition within a paranthesis has a distributive property to the multiplier outside the paranthesis. Ignoring this will lead to a wrong value for the operation.
/50 = /25•2
/25 • /2 further written as
5 • /2 simplified form
so A
If your asking to multiply 9x5 then the anwser is 45.