2 2/9+ 3 3/7 +1 4/9 enter sum in a box as a mixed number in simplest form

Name the quadrilaterals that have four equal sides.

Which expression is equivalent to sq-80

How many of the 250 grandparents in the population would you expect to prefer online shopping with merchant a? merchant a: 4 merchant b: 6 merchant c: 2 merchant d: 3 other: 5 none: 5 answer choices: a.about 4 b.about 8 c.about 40 d.about 21