Simplify 18 - 2[x + (x - 5)].
8 - 4x
28 - 4x
28 - 2x

Apatient is given 50 mg dose of medicine the medicines effectiveness decreases every hour at a constant rate of 40% what is the exponential decay function that models this scenario how much medicine will be left in the patients system after 2 hours

Consider the system: y = 3x + 5 y = ax + b what values for a and b make the system inconsistent? what values for a and b make the system consistent and dependent? explain

For the equations below which statement is true ? -2x=14 6x=-42