in the figure below, ∆ABC has DE//BC. AC =25cm, EC =5cm and DB=2,5cm E1 = E2 =x. calculate the numerical value of AD​

And employees salary increase by $4500 which represents a 15% raise what is the employees new salary

What is the maximum total area that 450cm of string can enclose if it is used to form perimeters of two adjoining rectangles as shown?

Answer asap ill give ! ’ a sample of radioactive material decays over time. the number of grams, y , of the material remaining x days after the sample is discovered is given by the equation y = 10(0.5)^x. what does the number 10 represents in the equation? a. the half-life of the radioactive material, in days b. the amount of the sample, in grams, that decays each day c. the time, in days, it will take for the samples to decay completely d. the size of the sample, in grams, at the time the material was discovered