Write an equation involving absolute value for -4 and 4

Tina practice piano for 15 hours last month and 45 hours this month use multiplication to write a statement comparing me i was tina practice during the two months use addition to write a statement comparing the hours tina practice during the two months

The difference between tax advoidance and tax evasion

What is the value of the expression 9+n/3-6 when n = 12? 1. 5. 7. 12.