Look at this it explains how to solve it.
Answer:
800
Step-by-step explanation:
38 rounded up is 40
23 rounded down is 20
2x4=8
add the zeros
800
75,069 divided by 45 is 1,668.2
I showed my division work here : http://i.imgur.com/v79bHDA.jpg
Answer:
15 days.
Step-by-step explanation:
1 person : 4 bird houses : 3 days
1 person : 20 bird houses : ? days
from 4 bird houses to 20 bird houses, you multiply by 5.
this means you also have to multiply the days by 5
3*5=15
Jared will have to work for 15 days to make 20 bird houses.