Final answer:
To put the given objects in order from least to greatest, convert them to decimals and arrange them accordingly -10, 0.099, 0.45, 0.8.
Step-by-step explanation:
To put the given objects in order from least to greatest, we need to compare their values. Let's start by converting all the objects to decimals.
- The fraction 9/20 can be converted to a decimal by dividing 9 by 20, which equals 0.45.
- The decimal -10 is already in decimal form.
- The decimal 0.099 is already in decimal form.
- The percentage 80% can be converted to a decimal by dividing 80 by 100, which equals 0.8.
Now, we can arrange the objects in order from least to greatest: