A boy is x Years old his sister is 4 years older if the sum of their ages is 18 what is his age

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

Negative 5 1/12 + negative 4 1/4 + 6 3/4

Describe how making an ‘and’ compound sentence effects your solution set