4x+9y=69
x=69-8y
what is the solution of the system?

Simplify the expression and find the missing terms. the simplest form of has in the numerator and in the denominator.

The vertex of this parabola is at (-2,-3). when the x-value is -1, the y-value is -5. what is the coefficient of the squared expression in the parabola's equation?

Apatient is to be given 35 milligrams of demerol every 4 hours. you have demerol 50 milligrams/milliliter in stock. how many milliliters should be given per dose?