Explain why estimating before you divide 624 by 6 you place the first digit in th quatient

Lydia collected two sets of data one set of data shows an outlier. which set has an outlier, and which number is the outlier?

Ametal rod needs to be 9 feet and 5.5 inches in length. the sections of the poles being used are each 1 foot and 10.5 inches long. how many 1ft 10.5in sections would be needed to complete the 9ft 5.5in metal rod? and how many inches of material will be left?

Write an equation of the line that passes through 9,2 and is parallel to the line y=5/3x+9