Answer:
Tip: $2.61
Total: $17.11
Step-by-step explanation:
tip = total cost * rate of tip
Add the tip to the original bill, that's the total.
I hope this helped.
Answer:

Step-by-step explanation:
Given

Required
Determine an equivalent expression
In trigonometry:

In 

Substitute
for
in 


Hence, the equivalent expression is: 
Answer:
9/20
Step-by-step explanation:
The answer is c. You distribute the X to the F and G. f(x) + g(x), which is x + 2.
I believe the answer is the first option. 1 to 3 with intervals of 1.
Hope this helps!