PLEASE ANSWER ILL GIVE POINTS

4/3 x 11/12

4/7 x 3/4

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

Afarm that has 4 x 10^2 acres has 1.2 x 10^5 cattle. what is the average number of cattle per acre? write the answer in scientific notation. answere asap

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base