The fact that lower-income families will spend a higher percentage of their income on taxable items than higher-income families means that sales tax is what type of tax?

In a certain pentagon, the interior angles are a, b,c, d,e where a, b,c, d,e are integers strictly less than 180. ("strictly less than 180" means they are "less than and not equal to" 180.) if the median of the interior angles is 61 and there is only one mode, then what are the degree measures of all five angles?

Ming says that 0.24 > 1/4 because 0.24= 2/4. which best explains mings error

Hello, i need compare km^2 and km. what's difference in this?