PLZS SOMONE HELPP I WILL MARK BRAINLIEST PLSS HELP ME​

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

80 points suppose marcy made 45 posts online. if 23 of them contained an image, what percent of her posts had images? round your answer to the nearest whole percent. 54 percent 51 percent 49 percent 48 percent

Julie was able to walk 16 km through the zoo in 6 hours. how long will it take her to walk 24 km through the zoo?