14 11/18
I got this answer by doing 30 1/9 + 4 1/3= 34 4/9
Now I subtracted 34 4/9 by 19 5/6 to get the answer 14 11/18
TIP: When adding/subtracting/multiplying/dividing mixed numbers change them to an improper fraction first by multiplying the denominator and the whole number then adding the numerator
Answer:
Catron's error is
"She did not follow order of operations"
Step-by-step explanation:
Catron evaluates the expression (negative 9) (2 and two-fifths)
That expression can be written as below

Catron's error is
"She did not follow order of operations"
The corrected steps are
Step1: Given expression is 
Step2: Convert mixed fraction into improper fraction
Step3: Multiplying the terms

Therefore solution 
Answer: -144.1226
Step-by-step explanation:
Answer:
80
Step-by-step explanation:
divide the circumference (251.2) by pi (3.14) and get 80