Answer:
The estimate of the proportion of oil tankers that had spills is 0.25.
Step-by-step explanation:
Proportion of oil tankers that had spills:
1036 tankers.
777 did not have spills.
So 1036 - 777 = 259 had spills.
The proportion is:

The estimate of the proportion of oil tankers that had spills is 0.25.
Answer:
b 233 7 in
Step-by-step explanation:
i think
2/10
20/100
Times 1/5 by 2 on both sidez and then times that by ten to get the second answer
The second and the third one because first is the same as 3 4/7 and 81=3^4
I don't understand Can you type it again?