Answer:
-51
Step-by-step explanation:
PEMDAS suggests you start with parenthesis
10+9•(-3)2-(7)
10-(27)2-(7)
10-54-7
-51
23% is maybe the percentage but if not then it maybe a little higher or lower
Factors of 4 : 1,2,4
factors of 10 : 1,2,5,10
As a improper fraction, its 127/100