Simplify the rational expression. If the expression is already in simplest form, state this as your answer.
A. simplest form
B. 
C. 
D. 
Answer: B
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The equation gives the position s = f(t) of a body moving on a coordinate line (s in meters, t in seconds). s (m)
When is the body standing still?
A. 2 < t < 3, 4 < t < 5, 7 < t < 9 B. 1 < t < 2 C. t = 3, t = 5, t = 8 D. 8 < t ? 10
Provide an appropriate response.Perform the operations and express in scientific notation: 
3
A. 15.625 × 10-9 B. 7.5 × 10-9 C. 7.5 × 100 D. 1.5625 × 10-8
Use the data shown in the scatter plot to determine whether the data should be modeled by a linear function.
A. No, data points do not lie close to a line B. Yes, exactly linear C. Yes, approximately linear
Find an equation of the line with the given slope and containing the given point. Express your answer in slope-intercept form.m = 7, (0, 0)
A. y = 
x
B. y = 7
C. y = 7x
D. x = 7