Answer:
Originally there were 30, 25 cents stamps and 20, 15 cent stamps.
Step-by-step explanation:
We are given the following in the question;
Let x be the number of 25 cents stamps and y be the number of 15 cents stamps.
Marci has a total 50 stamps.
Thus, we can write

Also,

Total cost = $16.50
Thus, we can write the equation:

Solving the two equations:

Originally,

Thus, originally there were 30, 25 cents stamps and 20, 15 cent stamps.
Answer:
B
Step-by-step explanation:
The first choice is true.
The second is not true.
Third is true.
I think the last is true (not sure)
So you know that 1 cubic foot is equal to 80 pounds. So, the first point would be (1,80).
You can find the other points by multiply 80 by a number, and when I did that, I got (2,160) and (3,240) too.
I hope this helps :)
Answer:
I love algebra anyways
The ans is in the picture with the steps how i got it
(hope this helps can i plz have brainlist :D hehe)
Step-by-step explanation:
Answer:
B is the right answer and if you want learn this, than learn algebric expression