Which one because it hard am going to keep telling questions

These question are hard can you me with answers

Maria walks a round trip of 0.75 mile to school every day. how many miles will she walk in 4.5 days

Which of the following equations are equivalent to -2m - 5m - 8 = 3 + (-7) + m? -15m = -4m -7m - 8 = m - 4 -3m - 8 = 4 - m m - 4 = -7m - 8 -8 - 7m = -4 + m -8 - 3m = 4 - m