C=(-10;5). If you want an explanation I would be happy to explain it
Answer:
and 
Step-by-step explanation:
If two equations are given, we can solve one of the equation in terms of single variable and put it in the other equation which will further give the value of x and y.
For the given equations:
Equation:1
Equation:2
Solving equation multiply equation 2 with 4 on both the sides
Equation 3
Subtracting Equation:3 from Equation:1

Putting value of 'y' in Equation:2 which will give the value of x

30 is the old value and 55 is the new value. In this case we have a positive change (increase) of 83.33333333 percent because the new value is greater than the old value. Using this tool you can find the percent increase for any value.
Answer:
the second one
Step-by-step explanation:
y = 2/3 (x +6)-5
Answer:
Step-by-step explanation:
Let d represent the total number of days that the milk will last.
The total number of cat warriors travelling together is 8. Each cat needs 4 liters of milk per day to maintain good morale. This means that the 8 cat warriors would need
8 × 4 = 32 liters of milk.
Let n represent the total number of liters of milk available. Therefore, the total number of days the milk will last, d would be
d = n/32
Mirri has a supply of 96 liters of milk. Another cat has enough milk to last for 2 days. This means that the amount of milk that the cat has is 4 × 2 = 8 liters. Total amount of milk available would be
96 + 8 = 104 liters
Therefore
d = 104/32 = 3.25 days