Why is it important to include both a number and a unit when describing a measure?

In a survey of 545 human resource professionals, each was asked about the importance of the age of a job applicant. The survey subjects were randomly selected by pollsters from a reputable market research firm.

What does 1/4 + 3/4 + 9/8

A shirt is on sale for $42. If this is of the original price of the shirt, what was the original price of the shirt? A. $72.75 B. $25.20 C. $70.00 D. $68.75

My brother is 5 years older than me. My sister is 3 years younger than me. Three years ago, how much younger than me was my sister?

The sum of two consecutive odd numbers is 156. What are the numbers

A jacket cost 4 times as much as a pair of shorts. Together they cost $75. How much is each item?

A sailboat's sail has three sides that are all the same length. Each side measures x-10x-10 units. The sail's perimeter is 63 units. What is the value of x?

Two cars leave towns 1000 kilometers apart at the same time and travel toward each other. One car's rate is 20 kilometers per hour less than the other's. If they meet in 5 hours, what is the rate of the slower car?

5.96 to the nearest 1 decimal place

A country's population in 1992 was 72 million in 1998 it was 76 million what will the population be in 2012