Translate to an equation and solve.What number is 49% of 20?
A. 980
B. 98
C. 9800
D. 9.8
Answer: D
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Use properties of exponents to simplify the expression. Express answer in exponential form.93 ? 9-5
A. -98 B. 9-15 C. 9-2 D. -9-2
Provide an appropriate response.If the trinomial 
is a perfect square, what can we conclude about the equation ax2 + bx + c = 0?
A. The equation has no real solutions. B. The equation has two rational solutions. C. The equation has one irrational solution. D. The equation has one rational solution.
Write the expression in the standard form a + bi.
A. 
+ 
i
B. - 
+ 
i
C. - 
+ 
i
D. 
+ 
i
Solve.Kannanaski Rapids drops 63 ft vertically over a horizontal distance of 837 ft. What is the slope of the rapids? Express your answer as a decimal and round to the nearest hundredth when necessary.
A. -63 B. 0 C. -13.29 D. -0.08