1/10 would be 0.1 dollars
The values are
and 
Explanation:
The expression is 
Simplifying, we get,

Since, both sides of the expression are equal, we can equate the corresponding values of A, B, C and D.
Thus, we get,
⇒
and 
Also, equating,
, we get,
and 
Thus, the values are
and 
Your total after tax is $30.12
A 20% tip is approximately $5.50 ($5.67)
Look at pic for work, all answers and work is listed
Answer:
75%
Step-by-step explanation:
900 /1200= .75=75%