Simplify. Assume that x and y are nonzero.
A. 25x2y5
B. 25x4y5
C. 5x4y5
D. 5x7y8
Answer: B
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Solve the problem.Mark can remember only the first 5 digits of his friend's phone number. He also knows that the number has 7 digits and that the last digit is not a 0. If Mark were to dial all of the possible numbers and if it takes him 17 seconds to try each one, how long would it take to try every possibility?
A. 28.3 minutes B. 2.8 minutes C. 5.7 minutes D. 25.5 minutes
Decide whether or not the ordered pair is a solution of the equation.(2, 2), 5x + 2y = 14
A. Yes B. No
Solve the problem.During a science competition, a student's mini-rocket was shot straight up from the ground at a speed of 500 feet per second. Ignoring air resistance, the height (in feet) of the mini-rocket at time t is given by 
What is the height of the mini-rocket 4 seconds after launch?
A. 1936 ft B. 2000 ft C. 1744 ft D. 1844 ft
Find the slope-intercept form of the equation of the line with the given properties.Slope = 0; containing the point (-6, 5)
A. y = -6 B. x = 5 C. y = 5 D. x = -6