Each bacterium in a petri dish splits into 2 bacteria after one day. The function b(d) = 600 • 24 models
the number of bacteria, b, in the petri dish after d days.
Part A)
What is the initial number of bacteria in the petri dish?
Part B)
How many bacteria will be in the petri dish after 5 days?

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50. write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd.

Lin is writing an equation to model the proportional relationship between y, the total cost in dollars of downloading videos from a website, and x, the number of videos downloaded. she knows that the total cost to download 3 videos was $12. her work to find the equation is shown below. joylin’s work step 1 k= 3/12= 0.25 step 2 y= 0.25x where did joylin make her first error?

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?