Chris wants to send a box of oranges to a friend by mail. the box of oranges cannot exceed a mass of 200kg. if each orange has a mass of 400g, what is the maximum number she can send?

we are given that

The box of oranges cannot exceed a mass of 200kg

so, total mass is 200kg

now, we can change into gram

1kg=1000g

so, total mass is 200kg=200*1000g=200000g

each orange has a mass of 400g

so, mass of one orange is 400g

Let's assume

total number of orange is n

so, we can use formula

total number of orange = (total mass of orange)/(mass of one orange)

so, the maximum number she can send is 500.........Answer

Option C, 9 * 10^-3

Step-by-step explanation:

Step 1:  Multiply

(4.5 * 10^-7) * (2 * 10^4)

9 * 10^-3

 Option C, 9 * 10^-3