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Questions in Grade Middle-school

[Done] Identify two ways to change the strength of an electric force.

[Done] If \( a - 3 = 7 \), then \( 2a - 14 = \) ?

[Done] At Jones College, there are a total of 100 students. If 30 of the students have cars on campus, 50 have bicycles, and 20 have both cars and bicycles, how many students have neither a car nor a bicycle on campus?

[Done] Aside from absorbing water and nutrients, what other functions do the roots serve?

[Done] Given that 4 percent of [tex](2a + b)[/tex] is 18 and [tex]a[/tex] is a positive integer, what is the greatest possible value of [tex]b[/tex]?

[Done] If an ant runs randomly through an enclosed circular field of radius 2 feet with an inner circle of radius 1 foot, what is the probability that the ant will be in the inner circle at any one time? A. \( \frac{1}{8} \) B. \( \frac{1}{6} \) C. \( \frac{1}{4} \) D. \( \frac{1}{2} \) E. \( 1 \)

[Done] How many people could read in France in the years 2000, 2001, 2002, and 2013?

[Done] A rectangular prism has a volume of 105 m³. This prism is enlarged using a scale factor of 4. What is the volume of the enlarged prism?

[Done] Luisa has 183 pennies. Her dad gives her 128 more. Write a number sentence to show how many pennies Luisa has now.

[Done] What is [tex]$123456567890 \times 1423$[/tex]? Please tell me the answer.