A culture of bacteria has an initial population of 1600 bacteria and doubles every 2 hours. Using the formula P1 = Po. 2, where P is the population
after t hours, P, is the initial population, t is the time in hours and d is the
doubling time, what is the population of bacteria in the culture after 19 hours,
to the nearest whole number?

to plot points   for x just start at the origin (middle) and go to the left however many times it say(if the number is a positive) if the number is a negative then go right however many times it says if it is 0 go nowhere

now keep you pencil there and go up however many times it says on y(if it is positive) if it is negative then go down however many times it says. if it says 0 go nowhere.

you have just plotted a point! now when you finish plotting all of them connect them with a ruler

plot each point as (-3, 7), (0,4), (3,1), (8,-4)   in the parenthesis on the left of the comma is x and the right is y.

the surface area is 124cm²

step-by-step explanation:

length: 4cm

width: 9cm

height:   2cm