What is the equation that you would set up to solve this problem? A square has a side that is equal to 7 + x. If the perimeter of the square is equal to 44, then what is x?

Please I'm begging you 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

Abag contains 4 red, 7 blue and 5 yellow marbles. event a is defined as drawing a yellow marble on the first draw and event b is defined as drawing a blue marble on the second draw. if two marbles are drawn from the bag, one after the other and not replaced, what is p(b|a) expressed in simplest form? a. 7/16 b. 7/15 c. 14/16 d. 14/15

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?