Answer:
The total cost of her lunch is $14.65
Step-by-step explanation:
15% of $12.74 is $1.91
12.74+1.91=14.65
Hello,
Please, see the detailed solution in the attached file.
Thanks.
Answer:
36
Step-by-step explanation:

Let's evaluate ~
The given expression is :

plug the value of x as 3



Therefore, the required value is 20