Solve the problem.The sum of a student's three scores is 229. If the first is 20 points more than the second, and the sum of the first two is 4 more than twice the third, what was the first score?
A. 67
B. 55
C. 75
D. 87
Answer: D
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Solve the problem.The slope of the tangent line to the hyperbola 5x2 - 7y2 - 217 = 0 at two points on the hyperbola is - 
. What are the coordinates of the points of tangency?
A. (7, 2) and (-7, -2) B. (5, 7) and (-5, -7) C. (7, -5) and (-7, 5) D. (7, -2) and (-7, 2)
Decide whether the statement translates into an expression or an equation.15 is 10 more than a number.
A. Expression B. Equation
Evaluate the integral.
A. (1/2)x2e2x - xe2x + (1/4)e2x + C B. (1/2)x2e2x - (1/4)xe2x + (1/4)e2x + C C. (1/2)x2e2x - (1/2)xe2x + C D. (1/2)x2e2x - (1/2)xe2x + (1/4)e2x + C
Express the exercise as a system of linear equations, then find the solution. Use a calculator where appropriate.A movie theater charges $8.00 for adults and $5.00 for children. If there were 40 people altogether and the theater collected $272.00 at the end of the day, how many of them were adults?
A. 16 adults B. 10 adults C. 24 adults D. 29 adults