You need to add what the lines are if you want them to be analysed for you^^
Answer:
The student made an error during the distributive property in the second step where they multiplied 0.15 by -0.2 to equal -0.3 when it should have been -0.03.
Step-by-step explanation:

Answer:
(x+4)(x+4)
Step-by-step explanation:
It is 51,600%. Hope it helps