Answer:
Step-by-step explanation:
9{[(9×9-10)-2]-5}
=9{[(81-10)-2]-5}
=9{[71-2]-5}
=9{69-5}
=9(64)
=576
C= -5
D = 7
C there is no mode
The mode is the number that appears most often. Since there is no number that appears more than once, there is no mode
