Solve.On a biology test, a student got 25 questions correct but did not pass. On a second attempt, the student got 35 questions correct. What was the percent increase?
A. 60%
B. 10%
C. 28.6%
D. 40%
Answer: D
Mathematics
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Find an equation of a parabola satisfying the given conditions.Find the equation of the parabola with vertex at the origin and axis along the y-axis if the parabola passes through the point 
A. y2 = 
x
B. x2 = 
y
C. y2 = 8x
D. x2 = 8y
Mathematics
Change the Cartesian integral to an equivalent polar integral, and then evaluate.
A. 
B. 
C. 
D. 
Mathematics
A system of nonlinear equations is given. Sketch the graph of the equation of the system and then determine the number of real solutions to the system. Do not solve the system.x2 + y2 = 252y + x = 5
A. One
B. Two
C. Two
D. Zero
Mathematics
Solve the equation.16 = y - 7
A. -9 B. 9 C. -23 D. 23
Mathematics