Spiral review 1st grade math use model 8+2 blank + blank+ blank=

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

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

Match each inequality to the number line that represents its solution