The population of a city (in millions) at time t (in years) is p(t)=2.2e^(0.006t), where t=0 is the year 2000. when will the population double from its size at t=0?

Rachel reads 1/5 of the pages of a book plus 12 pages on the first day. on the second day, she reads 1/4 of the remaining pages plus 15 pages. on the third day, she reads 1/3 of the remaining pages plus 18 pages. on the fourth day, she reads the remaining 70 pages. how many total pages are in the book?

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

What is the equivalent fraction for the following fraction using 5 as the multiplier? 1/2