Calculate the percentage increase in land from 1989 to 2013. First, take the amount of added land over that time period and divide it by the
original land area in 1989. Then, multiply by 100%.

For month one, we have 400 + 700 + 100 + 200 = 1400. So, month one gave the owner a total of $1,400.

• For month two, we have 300 + 900 + 50 + 250 = 1500. So, month two has a total sales of $1,500.

Comparing these two totals with each other, we see that month two has a total greater than month one. So, we have an increase going on. How much is our increase? $1,500 is $100 greater than $1,400. So,

our increase is $100.

cells use diffusion to get substances in and out of themselves. that diffusion will occur across the cell membrane or the outer covering of the cell. because we are talking about the surface of the cell, surface area and volume are  important factors here. as a cell increases in size, its surface area and volume increase as well.  we call that the surface area to volume ratio (sa: vol).  but the catch is that  volume increases at a greater rate than surface  area. in other words, as a cell gets bigger, the sa: vol gets smaller. so a really small cell like bacteria is mostly cell membrane (surface) with very little contents (volume). a really big cell like an egg, is mostly insides with a super thin membrane. so what ends up happening is that the cell cannot efficiently diffuse all of the stuff it needs in/out to survive. therefore cell size is limited to about 100mm. so how do we make organisms bigger than 100mm? cells divide! by dividing and becoming multicellular, organisms are able to grow!   check out the diagrams i attached to see the effect of sa: vol. i hope this ! good luck!

population. population is the number of people or animals in a particular place. an example of population is over eight million people living in new york city.

here is your answer hope i .