A 3-column table has 1 row. The first column is labeled Age with entry 12 years. The second column is labeled Mean with entry 58 inches. The third column is labeled Standard Deviation with entry 2.3 inches. About 68% of sixth-grade students will have heights between inches and inches.

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

What is the area of the original rectangle? 8 cm² 20 cm² 25 cm² 40 cm²

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.