Answer:
your correct on all
Step-by-step explanation:
Answer:
The answer is c
Step-by-step explanation:
5x+3y=19
multiply x 2: 10x+6y=38
2x-4y=-8
multiply by -5: -10x+20y=40
now you can add the two equations:
10x+6y=38
-10x+20y=40
add equations 0x+26y=78
Y=3
C , the little 5 at the top represents how many times 7 is multiplied.
Answer:

Step-by-step explanation:
we know that the circumference is equal to

we have

substitute

