The world's population is expected to grow at a rate of 1.3% per year until at least the year 2020. in 1994 the total population of the world was about 5,642,000,000 people. use the formula pn = p0ein to predict the world's population, pn, n years after 1994, with p0 equal to the population in 1994 and i equal to the expected growth rate. what is the world's predicted population n the year 2020, rounded to the nearest million?

the ratio of white tiles to blue tiles is 48: 16. the ratio in it's simplest form is 3: 1.

step-by-step explanation:

ratio: take the first number and add a colon next to it, then add the second number after that. make sure the ratio order matches up with the written problem!

simplest form: we can simplify the ratio 48 : 16 by dividing both terms by the greatest common factor (gcf).

the gcf of 48 and 16 is 16.

divide both terms by 16:

48 ÷ 16 = 3

16 ÷ 16 = 1

reducing to simplest form:

48 : 16 = 3 : 1