2. To estimate $4.80 + $2.25 + $3.40, Gail rounded up and down and used $5 + $2 + $3 = $10. Gails
mother rounded up and used $5 + $3 + $4 = $12. What are some advantages of doing estimation the
second way?

(40 points) i need some . an answer definition is appreciated as well.

Arectangle with an area of 47 m² is dilated by a factor of 7. what is the area of the dilated rectangle? enter your answer in the box. do not leave your answer as a fraction.

Abag has more green balls than blue balls, and there is at least one blue ball. let bb represent the number of blue balls and let gg represent the number of green balls. let's compare the expressions 2b2b and b + gb+g. which statement is correct? choose 1