Translate using numbers and symbols.seven times y plus eleven
A. 7 ? 11 + y
B. 11y + 7
C. 7(y + 11)
D. 7y + 11
Answer: D
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Solve the problem.An asteroid from deep space is sighted from the earth moving on a parabolic path with the earth at the focus. When the line from the earth to the asteroid first makes an angle of 90° with the axis of the parabola, the asteroid is measured to be 60 million miles away. How close will the asteroid come to the earth? Treat the earth as a point.
A. 6 million miles B. 3 million miles C. 9 million miles D. 30 million miles
Solve the inequality, and graph the solution set.x2 + 6x ? -8
A. [-2, ?)
B. (-?, -4]
C. (-?, -4] ? [-2, ?)
D. [-4, -2]
Solve.The distance D that a spring is stretched by a hanging object varies directly as the weight W of the object. If a 11-kg object stretches a spring 85 cm, find the distance when the weight is 21-kg. Round your answer to the nearest whole centimeter.
A. 117 cm B. 8 cm C. 162 cm D. 3 cm
Write the number as indicated.The world-wide production of cereal grains has reached about one billion, nine hundred 
million, four hundred eight thousand, six hundred tons. Write the number using digits.
A. 1,968,408,600 B. 1,968,480,600 C. 1,968,408,060 D. 1,968,848,600