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Questions in Grade Middle-school

[Homework Help] The sides of a rectangle measure 2 cm and 4 cm. How many lines of symmetry does the rectangle have?

[Homework Help] Find the perimeter and diagonal of a square whose area is equal to the area of a rectangle with a length of 9 m and a breadth of 4 m.

[Homework Help] A security camera rotates 30° every 10 seconds. How long does it take the camera to rotate 360°?

[Homework Help] 30°N, 120°E is located within the continent of...?

[Homework Help] Define these terms in relation to each other: - Cell: ? - Tissue: ? - Organ: ? - Organ system: ? - Organism: ?

[Homework Help] Can producers function without sunlight?

[Homework Help] Underline the subordinate clauses. Before he could go swimming, Ali packed his towel. The twins asked Dad to turn up the heating as it was cold. After drinking his water, Mark washed up his glass.

[Homework Help] Mark and Leonard went bird-watching. - Leonard saw 4 times as many red birds as Mark. - Leonard saw 28 red birds. Which equation could be used to find how many red birds Mark saw (n)?

[Homework Help] When does a substance release heat? (Note: This is about the changing state of matter.)

[Homework Help] Which type of country is most dependent on a ground transportation network for international trade?