In an examination 25% students Passed in civics and 20% in history, 40% passed in both of these subjects. If 90 students failed in history and Civics both, then what is the total number of students.

Imagine a new pasture with grass growing on it. every day after the seeds have germinated, the number of blades of grass in the pasture triples. after 18 days, the entire pasture is completely covered in grass. how many days did it take for the pasture to be one-third covered in grass?

17 in long 1.3 ft wide and 8in high what is the volume

Do some research and find a city that has experienced population growth. determine its population on january 1st of a certain year. write an exponential function to represent the city’s population, y, based on the number of years that pass, x after a period of exponential growth. describe the variables and numbers that you used in your equation.