Answer:
Step-by-step explanation:
10 time the number for friend equals the cost
1- Solving for y in the first equation, y=0
2- Substituting 0 for y in the second equation.
3- A zero is in the denominator, which is undefined
4- Therefore, the result is no solution
Give them all the same decimal places and then compare:
0,800
1,140
Now you can compare them on equal footing. If we cut out the decimal,
Is 1140 or 800 greater?
I believe answer is the square root of 87+56-12=5