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Questions in Grade Middle-school

[Done] Simplify the expression: 360 - 357 + 354 - 351 + ... + 300 - 297

[Done] Convert the mass to kilograms. | Mass (g) | Mass (kg) | |----------|-----------| | 1000 g | | | 500 g | | | 100 g | | | 50 g | | | 20 g | | | 10 g | |

[Done] A giraffe can run about 14 meters per second. Find its speed in miles per hour.

[Done] Use mental math and a pattern to find the product of 70 * 300.

[Done] How are elements and compounds similar?

[Done] How do I do number 9? And can you please show work on paper

[Done] You need to put a metal rod into a hole in a metal cylinder, but it is too tight. Which would be the best strategy to make the rod fit? (Consider using cooling and/or heating.)

[Done] How do you get 37 using four 4s?

[Done] What pattern do you see in the **powers of 4**?

[Done] Find the value of [tex]g[/tex] when [tex]5g + 15[/tex] equals [tex]2g + 21[/tex]. 1. Solve for [tex]g[/tex]. 2. Explain how you can check that the value you found for [tex]g[/tex] is correct. 3. If your check does not work, does that mean your results are incorrect? Explain.