8th grade on level top student

There are a total of 463,100 books in a library. What is the value of the exponent when this number is written in scientific notation?

• -2

• 2

• -5

• 5

A list of numbers ordered from least value to greatest value is shown. One number is missing. Which number could be the missing number?

• 4.5

• 3.8%

The cost for electricity varies directly with the amount of kilowatt-hours of electricity used. The cost for using 1,079 kilowatt-hours of electricity was $129.48. What was the cost for using 908 kilowatt-hours of electricity?

• $41.52

• $153.86

• $75.67

• $108.96

The two lines graphed on the coordinate grid represent a system of equations. What is the x-coordinate of the ordered pair that best represents a solution to both equations?

• 0

• 5

• 7

A rectangle is graphed on a coordinate grid. Which transformation will result in a rectangle that is NOT congruent to the original rectangle?

• A dilation by a scale factor of 3

• A rotation of 180 degrees clockwise

• A translation 90 units to the right

• A reflection across the x-axis

A circle is graphed on a coordinate grid with its center at (-4,7). The circle will be translated p units to the right and v units down. Which rules describes the center of the new circle after this translation?

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• 6.3 in

• 4.0 in

• 14.3 in

• 19.8 in

• 12 lb

• 75 lb

• 45 lb

• 105 lb

• y = 5.47x

• y = 4.39x

• y = 0.55x + 3,150

• y = 3,150 + 0.55

Which set of ordered pairs represents y as a function of x?

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