Answer: 16/35, decimal form: 0.45
Step-by-step explanation: (3/5-1/7) =3/5-1/7=3/5+-1/7=21/35+-(5)/35= 21 +(-5)/35= <em><u>16/35, decimal form: 0.45</u></em>
Answer:
No.
Step-by-step explanation:
No, it is a linear equation. There are no exponents on the x or y variables.
Is there supposed to be parentheses?
Answer:

The number is 8 because 
And if you add 4, you get 20
Hence, the number is 8