If initial population of any place is Po, population after T years is Pr and annual rate of
population growth is 2% per annum then
express P in terms of Po, T and Q.​

Two cyclists 84 miles apart start riding toward each other at the same. one cycles 2 times as fast as the other. if they meet 4 hours later, what is the speed (in mi/h) of the faster cyclist?

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?