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Questions in Grade Middle-school

[Homework Help] During a science experiment, Peter found the temperature of a certain liquid to be [tex] -a^\circ [/tex] Centigrade after he had raised the temperature by [tex] x [/tex] degrees. Write an expression to represent the temperature of the liquid at the start of the experiment, before it was raised.

[Homework Help] The Earth rotates about its axis once every 23 hours, 56 minutes, and 4 seconds, and the radius of the Earth is 3960 miles. Find the linear speed of a point on the equator in miles per hour (mi/h).

[Homework Help] How many tens are in 876?

[Homework Help] What is the value of \( b \) in the equation? \[ 5b - 4 = 2b + 17 \]

[Homework Help] What recent world issues or problems can be solved if people recognize and perform their roles effectively?

[Homework Help] The dimensions of a large room are double the dimensions of a small room. Both rooms are rectangular prisms. The volume of the small room is 10 cubic meters. What is the volume of the large room?

[Homework Help] Which sentence has the correct punctuation? A. “Sorry I’m late, he apologised, but my car wouldn’t start.” B. “Sorry I’m late” he apologised “but my car wouldn’t start.” C. “Sorry I’m late,” he apologised, “but my car wouldn’t start.” D. “Sorry I’m late,” he apologised, “But my car wouldn’t start.”

[Homework Help] Which option correctly completes the sentence? Council plans for the new pool were approved ________ on Monday. A. last Friday: work will begin B. last Friday, work will begin C. last Friday; work will begin D. last Friday! work will begin

[Homework Help] Two places are 4.7 cm apart on a map. On the map, 1 cm represents 5 km. What is the actual distance between the two places?

[Homework Help] Find one word that is incorrect. The perimeter of a circle is its circumfrance.