Answer:
{x,y}={5,4} x is =5 y= to 4
Im pretty sure the answer is D, because if i used the right formula,

you should get this in the formula


a 2 subtracting a negative 6 makes it a positive, meaning your just adding 6 plus2, to get 8
Answer:
x= -4
Step-by-step explanation:
hope it's helpful to you
Answer:
55 hours
Step-by-step explanation:
Write the problem as an equation.
4290-78x=0
Where 'x' is each hour the pond is being drained.
Then, solve.
4290=78x Add 78x to each side of the equation
55=x Divide both sides by 78