Solve the problem.Jill is 
away from Joe. Both begin to walk toward each other at the same time. Jill walks at 
per hour. If they meet in 2 hours, how fast is Joe walking?
A. 4.5 km per hour
B. 3.5 km per hour
C. 2 km per hour
D. 2.5 km per hour
Answer: D
Mathematics
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Express using positive exponents. Then, if possible, simplify.
A. 2x-4
B. 
C. 2x4
D. 4x2
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Write the expression as a complex number in the form a + bi.3 - 
A. 3 + 6i B. 3 - 6i C. -3 + i D. -3
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Write as a percent. Round to the nearest tenth of a percent.
A. 1.3% B. 12.5% C. 15.6% D. 80%
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Find an equation in slope-intercept form of the line satisfying the specified conditions.A vertical line that passes through the point (1, 6)
A. y = 6 B. x = 6 C. x = 1 D. y = 1
Mathematics