Answer:
2n+13
Step-by-step explanation:

Answer:
66n-31m
Step-by-step explanation:
26n-7m+4(10n-6m)
26n-7m+40n-24m
66n-31m
X^2 -61 =20
X^2= 81x =9 x=-9
81.42
= 81+ 0.42
= 81+ 42/100
= 81+ (42/2) / (100/2)
= 81+ 21/50
= 81 21/50
The final answer is 81 21/50~
Answer:
What are the options?
Step-by-step explanation: