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Questions in Grade Middle-school

[Open]It costs $5.50 per hour to rent a pair of ice skates for up to 2 hours. After 2 hours, the rental cost per hour decreases to $2.50. How much does it cost to rent a pair of ice skates for 4 hours?

[Open]A rectangle has a perimeter of 52 cm and an area of 144 square cm. Find its length and width if they are whole numbers.

[Open]Why were indentured servants necessary in Virginia?

[Open]Ken has a 12.2-ounce bottle of ketchup. He uses [tex]\frac{1}{20}[/tex] of the ketchup every time he has a buffalo burger. How many ounces of ketchup are left after Ken has eaten 4 buffalo burgers?

[Open]What is a computer, using technical terms? What is a byte and a bit?

[Open]The area of a library tabletop is 27 1/8 square feet. The table is 3 1/2 feet wide. What is the length of the table?

[Open]Write "p divided by 6" as an algebraic expression.

[Open]Logan and his friend went out to dinner and spent $18.50. They left a tip of $2.59. What percent tip did they leave?

[Open]What are the purposes of the laws Congress passes?

[Open]The sum of 185 and h as an algebraic expression.