Answer:
1st box: Asso. prop= m+(4+x)
2nd box: Comm. Prop= m+4=4+m
3rd box: iden. prop= m+0=m
4th box: Zero prop: m x 0=0
a. 54.75
b. 2.64
Step-by-step explanation:
the answer is -12/3 cause it's negative
23/30