Yesterday 700 flies were eaten by frogs in the park. Today the number of flies decreased to 560 flies. By what percentage has the number of flies eaten decreased?

If 140 decreases to 56, by what percentage has it decreased?

Last year, Jackson Primary School's population was 710 students. This year, after rezoning, the population is 497 students. What is the percent of decrease in the student population?

If ‘8’ Drosophila in a laboratory population of ‘80’ died during a week, the death rate in the population is ___________ individuals per Drosophila per week.

A study of the annual population of bees in a county park shows the population, B(t)𝐵(𝑡), is declining due to pesticide usage and can be represented by the function B(t)=1872(.83)t𝐵(𝑡)=1872(.83)𝑡, where the t𝑡 represents the number of years since the study started. Based on the function, what is the percent the bees population declines by each year?

The population of a small town decreased from 18,560 to 15,787 due to breakout of an epidemic. What is the percentage decrease in the population?Choices:- 14.94% 17% 25% 30%