The independent variables are the cost for one ticket and the number of student tickets. The cost of the tickets depends on the number of student tickets being purchased. The equation would be c = 7s.
Answer:
For a shape to be inscribed means that it's area is smaller than that of the other shape. Essentially, it's one shape inside another.
View my crudely drawn example for visualization. There, the square-ish shape is inscribed in the circle.
(You can basically inscribe any shape within another.)
Answer:

Step-by-step explanation:
We can write the following system of equations:
, where
is the number of dimes she has and
is the number of nickels she has.
Multiply the second equation by
and add both equations to solve for
:
.
Plug
into any equation to solve for
:

Answer:
the answer is 
Step-by-step explanation:
I hope this helps! :)
Try using Symbolab, I use it all the time it gives the correct answer and it gives good explanations.
Answer:
the 1st number line and 29
Step-by-step explanation:
The second one starts at 21 and takes away which gives 13. which isnt the answer. When adding numbers, you go forward